Touch Display Device

ABSTRACT

A touch display device includes a first horizontal electrode including a plurality of first electrode parts spaced apart from one another in a horizontal direction and a plurality of first bridge parts connecting the plurality of first electrode parts; a second horizontal electrode including a plurality of second electrode parts spaced apart from the first horizontal electrode in a vertical direction and spaced apart from one another in the horizontal direction and a plurality of second bridge parts connecting the plurality of second electrode parts; a third horizontal electrode including a plurality of third electrode parts spaced apart from the second horizontal electrode in the vertical direction and spaced apart from one another in the horizontal direction and a plurality of third bridge parts connecting the plurality of third electrode parts; a first horizontal touch line electrically connected to the first horizontal electrode and disposed to extend in the vertical direction; a second horizontal touch line electrically connected to the second horizontal electrode and disposed to extend in the vertical direction; and a third horizontal touch line electrically connected to the third horizontal electrode and disposed to extend in the vertical direction; a plurality of first separation electrodes; a plurality of second separation electrodes; a first vertical touch line; and a second vertical touch line.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims the priority benefit of Republic of Korea PatentApplication No. 10-2020-0184850, filed on Dec. 28, 2020 in the KoreanIntellectual Property Office, the disclosure of which is incorporatedherein by reference in its entirety.

BACKGROUND Field of the Disclosure

The present disclosure relates to touch display devices.

Description of the Background

Touch display devices increasingly employ a touch-based input functionthat enables users to easily input information or a command to thedisplay device in an intuitive and convenient manner, in addition to afunction of displaying images or data.

In order to provide the touch-based input function, the touch displaydevice is required to have capabilities accurately to detect thepresence or absence of a touch from a user and detect coordinates of thetouch. To do this, the touch display device includes a touch panelhaving a touch sensor structure. Here, the touch sensor structure mayinclude a plurality of touch electrodes and a plurality of touch lines.

As the size of the touch panel increases, a number of required touchelectrodes increases too. As a result, the number of touch linesdisposed on the touch panel increases, and the number of touch channels(corresponding to the touch lines) of the touch driving circuit is alsorequired to be increased. This results in panel manufacturing being morecomplicated and manufacturing cost increasing, and in turn, anassociated touch driving circuit may be more complicated and a cost ofmanufacturing the touch driving circuit may increase further.

SUMMARY

Embodiments of the present disclosure provide touch display deviceshaving a touch sensor structure capable of reducing the number of touchlines and touch channels while maintaining the accuracy of touchsensing.

Embodiments of the present disclosure provide touch display deviceshaving a touch sensor structure capable of reducing an overlap areabetween touch electrodes and display lines.

Embodiments of the present disclosure provide touch display deviceshaving a touch sensor structure capable of improving touch sensitivityby reducing a difference in areas (sizes) between two types of touchelectrodes (e.g., a horizontal electrode and a vertical electrode).

Embodiments of the present disclosure provide touch display deviceshaving a touch sensor structure capable of reducing the number of touchlines and touch channels while maintaining the accuracy of touchsensing.

According to aspects of present disclosure, a touch display device isprovided that includes a first horizontal electrode including aplurality of first electrode parts spaced apart from one another in ahorizontal direction and a plurality of first bridge parts connectingthe plurality of first electrode parts; a second horizontal electrodeincluding a plurality of second electrode parts spaced apart from thefirst horizontal electrode in a vertical direction and spaced apart fromone another in the horizontal direction and a plurality of second bridgeparts connecting the plurality of second electrode parts; a thirdhorizontal electrode including a plurality of third electrode partsspaced apart from the second horizontal electrode in the verticaldirection and spaced apart from one another in the horizontal directionand a plurality of third bridge parts connecting the plurality of thirdelectrode parts; a first horizontal touch line electrically connected tothe first horizontal electrode and disposed to extend in the verticaldirection; a second horizontal touch line electrically connected to thesecond horizontal electrode and disposed to extend in the verticaldirection; and a third horizontal touch line electrically connected tothe third horizontal electrode and disposed to extend in the verticaldirection. The touch display device according to aspects of the presentdisclosure may further include a plurality of first separationelectrodes located between the plurality of first bridge parts and theplurality of second bridge parts and spaced apart from one another inthe horizontal direction; a plurality of second separation electrodeslocated between the plurality of second bridge parts and the pluralityof third bridge parts and spaced apart from one another in thehorizontal direction; a first vertical touch line electricallyconnecting a first separation electrode in a first column of theplurality of first separation electrodes and a second separationelectrode in the first column of the plurality of second separationelectrodes; and a second vertical touch line electrically connecting afirst separation electrode in a second column of the plurality of firstseparation electrodes and a second separation electrode in the secondcolumn of the plurality of second separation electrodes.

The first separation electrode disposed in the first column and thesecond separation electrode disposed in the first column may beconnected by the first vertical touch line and included in a firstvertical electrode.

The first separation electrode disposed in the second column and thesecond separation electrode disposed in the second column may beconnected by the second vertical touch line and included in a secondvertical electrode.

The first separation electrode disposed in the second column and thesecond separation electrode disposed in the second column may bedisposed between the first horizontal touch line and the secondhorizontal touch line.

The first separation electrode disposed in the first column may includea first protrusion part interposed between a first electrode part and asecond electrode part disposed in the same column.

The second separation electrode disposed in the first column may includea second protrusion part interposed between the second electrode partand a third electrode part disposed in the same column.

A first contact hole through which the first protrusion part and thefirst vertical touch line are connected, and a second contact holethrough which the second protrusion part and the first vertical touchline are connected may be formed in the touch display device.

The first vertical touch line may overlap the second and third electrodeparts disposed in the same column, and may be electrically separatedfrom the overlapping second and third electrode parts.

The first horizontal touch line may overlap the second and thirdelectrode parts overlapping the first vertical touch line, beelectrically connected to the first electrode part of the first to thirdelectrode parts, and be electrically separated from the second and thirdelectrode parts.

An area of the first protrusion part may be substantially the same as anarea of a first bridge part in the first column of the plurality offirst bridge parts.

The first horizontal touch line may be connected to one of the pluralityof first electrode parts and the plurality of first bridge parts of thefirst horizontal electrode, the second horizontal touch line may beconnected to one of the plurality of second electrode parts and theplurality of second bridge parts of the second horizontal electrode, andthe third horizontal touch line may be connected to one of the pluralityof third electrode parts and the plurality of third bridge parts of thethird horizontal electrode.

Each of the first horizontal electrode, the second horizontal electrode,the third horizontal electrode, the plurality of first separationelectrodes, and the plurality of second separation electrodes may beformed such that one or more of first layer electrodes and one or moreof second layer electrodes are located in different layers and disposedto be electrically connected.

According to aspects of present disclosure, a touch display device isprovided that includes a first vertical electrode disposed to extend ina vertical direction; a second vertical electrode spaced apart from thefirst vertical electrode in a horizontal direction and disposed toextend in the vertical direction; a third vertical electrode spacedapart from the second vertical electrode in the horizontal direction anddisposed to extend in the vertical direction; a first vertical touchline electrically connected to the first vertical electrode and disposedto extend in the vertical direction; a second vertical touch lineelectrically connected to the second vertical electrode and disposed toextend in the vertical direction; and a third vertical touch lineelectrically connected to the third vertical electrode and disposed toextend in the vertical direction. The touch display device according toaspects of present disclosure may further include a plurality of firstseparation electrodes located between the first vertical electrode andthe second vertical electrode and spaced apart from one another in thevertical direction; a plurality of second separation electrodes locatedbetween the second vertical electrode and the third vertical electrodeand spaced apart from one another in the vertical direction; a firsthorizontal connection line electrically connecting a first separationelectrode in a first row of the plurality of first separation electrodesand a second separation electrode in the first row of the plurality ofsecond separation electrodes; a first horizontal touch line electricallyconnected to the first horizontal connection line and disposed to extendin the vertical direction; a second horizontal connection lineelectrically connecting a first separation electrode in a second row ofthe plurality of first separation electrodes and a second separationelectrode in the second row of the plurality of second separationelectrodes; and a second horizontal touch line electrically connected tothe second horizontal connection line and disposed to extend in thevertical direction.

The second vertical electrode may have a plurality of grooves formed oneach of one side and the other side thereof.

Each of the plurality of first separation electrodes may include aprotrusion part located in a space provided by a corresponding groove ofthe plurality of grooves formed on the one side of the second verticalelectrode.

Each of the plurality of second separation electrodes may include aprotrusion part located in a space provided by a corresponding groove ofthe plurality of grooves formed on the other side of the second verticalelectrode.

The third vertical electrode may have a plurality of grooves formed oneach of one side and the other side thereof.

Each of the plurality of second separation electrodes may include aprotrusion part located in a space provided by a corresponding groove ofthe plurality of grooves formed on the one side of the third verticalelectrode.

The first horizontal connection line may run across the grooves formedon each of the one side and the other side of the second verticalelectrode and the grooves formed on each of the one side and the otherside of the third vertical electrode.

The first vertical touch line may be disposed to extend in thehorizontal direction, and then, bend and extend in the verticaldirection while overlapping all, or one or more, of the plurality offirst separation electrodes. The first vertical touch line may beelectrically separated from all, or one or more, of the overlappingfirst separation electrodes.

The first horizontal touch line may overlap all, or one or more, of theplurality of first separation electrodes overlapping the first verticaltouch line.

The first horizontal touch line may be electrically connected to a firstseparation electrode in a first row of all, or one or more, of theplurality of first separation electrodes overlapping the first verticaltouch line, and be electrically separated from one or more firstseparation electrodes disposed in the remaining rows except for thefirst row.

One gate line may run across the first vertical electrode, the firstseparation electrode, the second vertical electrode, the secondseparation electrode, and the third vertical electrode.

Each of the first vertical electrode, the second vertical electrode, thethird vertical electrode, the plurality of first separation electrodes,and the plurality of second separation electrodes may be formed suchthat one or more first layer electrodes and one or more second layerelectrodes are located in different layers and disposed to beelectrically connected.

According to embodiments of the present disclosure, it is possible toprovide touch display devices having a touch sensor structure capable ofreducing the number of touch lines and touch channels while maintainingthe accuracy of touch sensing.

According to embodiments of the present disclosure, it is possible toprovide touch display devices having a touch sensor structure capable ofreducing an overlap area between touch electrodes and display lines.

According to embodiments of the present disclosure, it is possible toprovide touch display devices having a touch sensor structure capable ofimproving touch sensitivity by reducing a difference in areas (sizes)between two types of touch electrodes (e.g., a horizontal electrode anda vertical electrode).

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are included to provide a furtherunderstanding of the disclosure and are incorporated in and constitute apart of the disclosure, illustrate aspects of the disclosure andtogether with the description serve to explain the principle of thedisclosure. In the drawings:

FIG. 1 illustrates a system configuration of a touch display deviceaccording to aspects of the present disclosure;

FIG. 2A illustrates a display part of the touch display device accordingto aspects of the present disclosure;

FIG. 2B illustrates a touch sensing part of the touch display deviceaccording to aspects of the present disclosure;

FIG. 3 illustrates a display panel and a touch panel of the touchdisplay device according to aspects of the present disclosure;

FIG. 4 illustrates a part of an example split-type touch sensorstructure in the touch display device according to aspects of thepresent disclosure;

FIG. 5 illustrates a method for reducing the number of touch channels inthe split-type touch sensor structure of the touch display deviceaccording to aspects of the present disclosure;

FIG. 6 illustrates example touch sensor units in a woven-type touchsensor structure of the touch display device according to aspects of thepresent disclosure;

FIG. 7 illustrates an example touch sensor unit in the woven-type touchsensor structure of the touch display device according to aspects of thepresent disclosure;

FIG. 8 illustrates an example touch sensor unit in the woven-type touchsensor structure of the touch display device according to aspects of thepresent disclosure;

FIG. 9 illustrates an enlargement of a partial area in FIG. 8;

FIG. 10 illustrates an example touch sensor unit in the woven-type touchsensor structure of the touch display device according to aspects of thepresent disclosure;

FIG. 11 illustrates an enlargement of a partial area in FIG. 10;

FIG. 12 illustrates an example touch sensor unit in the woven-type touchsensor structure of the touch display device according to aspects of thepresent disclosure;

FIG. 13 illustrates an enlargement of a partial area in FIG. 12;

FIG. 14 illustrates an example touch sensor unit in the woven-type touchsensor structure of the touch display device according to aspects of thepresent disclosure;

FIG. 15 illustrates an enlargement of a partial area in FIG. 14;

FIG. 16 illustrates an example touch sensor unit in the woven-type touchsensor structure of the touch display device according to aspects of thepresent disclosure;

FIG. 17 illustrates an arrangement structure of touch lines disposed inthree touch sensor units to which the woven-type touch sensor structureof FIGS. 8, 12 and 14 is applied;

FIG. 18 illustrates an arrangement structure of touch lines disposed inthree touch sensor units to which the woven-type touch sensor structureof FIGS. 10 and 16 is applied;

FIG. 19 is a signal diagram illustrating driving timings formutual-capacitance sensing in the touch display device according toaspects of the present invention; and

FIG. 20 is a signal diagram illustrating driving timings forself-capacitance sensing in the touch display device according toaspects of the present invention.

DETAILED DESCRIPTION

Hereinafter, the present preferred embodiments of the disclosure will bedescribed in detail with reference to the accompanying drawings. Indenoting elements of the drawings by reference numerals, the sameelements will be referenced by the same reference numerals even when theelements are illustrated in different drawings. In the followingdescription of the disclosure, detailed description of known functionsand configurations incorporated herein may be omitted when it may makethe subject matter of the disclosure rather unclear. The terms such as“including”, “having”, “containing”, and “comprising” used herein aregenerally intended to allow other components to be added unless theterms are used with the term “only”. Singular forms used herein areintended to include plural forms unless the context clearly indicatesotherwise.

Further, the terms “first”, “second”, “A”, “B”, “(a)”, “(b)”, or thelike may be used to describe elements included in embodiments of thepresent disclosure. Each of the terms is not used to define essence,order, sequence, or number of an element, but is used merely todistinguish the corresponding element from another element.

Herein, situations in which two or more elements included in embodimentsof the present disclosure are connected, combined, coupled, or the likemay include not only directly or physically connecting, combining,coupling, or contacting between two or more elements, but interposing ofanother element between the two or more elements. Here, the anotherelement may be included in one or more of the two or more elementsconnected, combined, coupled, or contacted (to) one another.

In describing time relative terms with reference to elements,operations, steps, or processes included in embodiments of the presentdisclosure, situations in which “after”, “subsequent to”, “next to”,“before”, or the like is used to describe a temporal sequentialrelationship or a flow sequential relationship between events,situations, cases, operations, or the like are generally intended toinclude events, situations, cases, operations, or the like that do notoccur consecutively unless the terms, such as “directly”, “immediately”,or the like, are used.

Meanwhile, when numerical values for elements included in embodiments ofthe present disclosure or their associated information (e.g., levelsetc.) are described, even when specific relevant descriptions are notgiven, the numerical values or the associated information may beinterpreted as including a margin of error that can be caused by severalfactors (e.g., factors in the process, internal or external impact,noise, etc.).

FIG. 1 illustrates a touch display device 100 according to aspects ofthe present disclosure.

The touch display device 100 according to aspects of the presentdisclosure is capable of providing an image display function ofdisplaying images, and a touch sensing function of sensing a touch by atouch object such as a finger, a pen, and/or the like. Here, the term‘pen’ is sometimes referred to as a stylus or a stylus pen, and mayinclude an active pen that has signal transmission and receptionfunctions, is able to perform an operation through interlinking with thetouch display device 100, and/or includes its own power supply, apassive pen that does not have signal transmission and receptionfunctions and/or does not include its own power supply, and the like.

In one embodiment, the touch display device 100 may be a television(TV), a computer monitor, a vehicle monitor, or the like, or may be amobile device such as a tablet, a smart phone, and the like.

In one embodiment, the touch display device 100 may include a displaypart for displaying images and a touch sensing part for sensing touches.

Hereinafter, a display part and a touch sensing part of the touchdisplay device 100 will be described in more detail with reference toFIGS. 2A and 2B.

FIG. 2A illustrates the display part of the touch display device 100according to aspects of the present disclosure.

Referring to FIG. 2A, the display part of the touch display device 100according to aspects of the present disclosure includes a display panel210, a data driving circuit 220, a gate driving circuit 230, a displaycontroller 240, and the like.

The display panel 210 includes a substrate SUB, a plurality of datalines DL and a plurality of gate lines GL disposed on or over thesubstrate SUB, and a plurality of sub-pixels SP disposed on or over thesubstrate SUB and connected to the plurality of data lines DL and theplurality of gate lines GL.

The display panel 210 may include a display area DA in which an image isdisplayed and a non-display area NDA in which an image is not displayed.The plurality of sub-pixels SP may be disposed in the display area DA ofthe display panel 210. Various types of signal lines may be disposed inthe non-display area NDA of the display panel 210.

The data driving circuit 220 and the gate driving circuit 230 may beelectrically connected to the non-display area NDA of the display panel210.

The data driving circuit 220 can drive the plurality of data lines DL bysupplying data voltages to the plurality of data lines DL.

The gate driving circuit 230 can drive the plurality of gate lines GL bysupplying gate signals (referred to as scan signals) to the plurality ofgate lines GL.

The display controller 240 can control operations of the data drivingcircuit 220 and the gate driving circuit 230 by supplying various typesof control signals DCS and GCS to the data driving circuit 220 and thegate driving circuit 230.

The display controller 240 starts a scanning operation according totimings scheduled in each frame, converts image data inputted from otherdevices or other image providing sources (e.g., a host system) to a datasignal type used in the data driving circuit 220 and then supplies imagedata DATA resulting from the converting to the data driving circuit 220,and controls the loading of the data to at least one pixel at apre-configured time according to a scan timing.

The display controller 240 may be a timing controller TCON used in atypical display device, or a controller including the timing controller.

The display controller 240 may be implemented in a separate componentfrom the data driving circuit 220, or integrated with the data drivingcircuit 220 and implemented into an integrated circuit.

The data driving circuit 220 may be located on, but not limited to, onlyone side (e.g., an upper portion or a lower portion) of the displaypanel 210, or in another embodiment, the data driving circuit 220 may belocated on, but not limited to, two sides (e.g., the upper portion andthe lower portion) of the display panel 210, according to drivingschemes, panel design schemes, or the like.

The data driving circuit 220 may be electrically connected to thenon-display area NDA of the display panel 210. In another embodiment,the data driving circuit 220 may be disposed to overlap the display areaDA of the display panel 210.

The data driving circuit 220 may be implemented by including at leastone source driver integrated circuit. Each source driver integratedcircuit may include a shift register, a latch circuit, adigital-to-analog converter DAC, an output buffer, and the like. In someembodiments, each source driver integrated circuit may further includean analog-to-digital converter according to design schemes.

In some embodiments, the data driving circuit 220 may be connected tothe display panel 210 in a tape automated bonding (TAB) type, orconnected to a conductive pad such as a bonding pad of the display panel210 in a chip on glass (COG) type or a chip on panel (COP) type, orconnected to the display panel 210 in a chip on film (COF) type.

The gate driving circuit 230 may be located on, but not limited to, onlyone side (e.g., an upper portion, a lower portion, a left side, or aright side) of the display panel 210, or in another embodiment, the gatedriving circuit 230 may be located on, but not limited to, two sides(e.g., the upper portion and the lower portion, or the left side and theright side) of the display panel 210, according to driving schemes,panel design schemes, or the like.

The gate driving circuit 230 may be electrically connected to, ordisposed in, the non-display area NDA of the display panel 210. Inanother embodiment, the gate driving circuit 230 may be disposed tooverlap the display area DA of the display panel 210.

The gate driving circuit 230 may be implemented by including at leastone gate driver integrated circuit. Each gate driver integrated circuitmay include a shift register, a level shifter, and the like.

In some embodiments, the gate driving circuit 230 may be connected tothe display panel 210 in a tape automated bonding (TAB) type, orconnected to a conductive pad such as a bonding pad of the display panel210 in a chip on glass (COG) type or a chip on panel (COP) type, orconnected to the display panel 210 in a chip on film (COF) type. Inanother embodiment, the gate driving circuit 230 may be located in thenon-display area NDA of the display panel 210 in a gate in panel (GIP)type. The gate driving circuit 230 may be disposed on or over asubstrate SUB, or connected to the substrate SUB. That is, in the caseof the GIP type, the gate driving circuit 230 may be disposed in thenon-display area NDA of the substrate SUB. The gate driving circuit 230may be connected to the substrate SUB in the case of the chip on glass(COG) type, the chip on film (COF) type, or the like.

At least one of the data driving circuit 220 and the gate drivingcircuit 230 may be disposed in the display area DA. For example, atleast one of the data driving circuit 220 and the gate driving circuit230 may be disposed not to overlap sub-pixels SP, or disposed to overlapone or more, or all, of the sub-pixels SP.

The display panel 210 may be one of various types of display panels suchas a liquid crystal display panel, an organic light emitting displaypanel, an electroluminescence display panel, a plasma display panel, andthe like.

FIG. 2B illustrates the touch sensing part of the touch display device100 according to aspects of the present disclosure.

Referring to FIG. 2B, the touch display device 100 according to aspectsof the present disclosure may include a touch panel TSP and a touchsensing circuit 300 to sense a touch input by a finger and/or a pen.

The touch sensing circuit 300 may include a touch driving circuit 310that drives and senses the touch panel TSP and outputs sensed data, anda touch controller 320 that receives the sensed data from the touchdriving circuit 310 and calculates a touch position.

The touch panel TSP may include one or more touch sensors including aplurality of touch electrodes TE. The touch panel TSP may furtherinclude a plurality of touch lines TL for electrically connecting theplurality of touch electrodes TE to the touch driving circuit 310.

The touch driving circuit 310 can supply a touch driving signal TDS toone or more, or all, of the plurality of touch electrodes TE, generatesensing data by sensing one or more, or all, of the plurality of touchelectrodes TE, and supply the generated sensing data to the touchcontroller 320. Here, the sensing of the touch electrode TE by the touchdriving circuit 310 may mean detecting an electric signal from the touchelectrode TE.

The touch controller 320 may acquire the presence or absence of a touchand/or a touch coordinate (a touch position) by using the sensing datareceived from the touch driving circuit 310.

The touch driving signal TDS may be a signal whose voltage level ischanged over time. In an embodiment, the touch driving signal TDS mayhave one or more of various types of signals, such as a square wave, atriangle wave, a sine wave, or the like.

The touch display device 100 can provide a self-capacitance-based touchsensing function that senses a touch by measuring a capacitance formedacross each touch electrode TE or a change in such capacitance, or amutual-capacitance-based touch sensing function that senses a touch bymeasuring a capacitance between touch electrodes TE or a change in suchcapacitance.

The touch display device 100 according to aspects described herein canprovide both the self-capacitance-based touch sensing function and themutual-capacitance-based touch sensing function. For example, the touchdisplay device 100 may provide the self-capacitance-based touch sensingfunction and the mutual-capacitance-based touch sensing function indifferent times or different situations.

When the touch display device 100 provides the self-capacitance-basedtouch sensing function, the touch driving circuit 310 can supply a touchdriving signal TDS to each of the plurality of touch electrodes TE, andsense the touch electrode to which the touch driving signal is applied,and output sensing data, which are generated based on the sensed result.Here, the sensed result corresponds to a capacitance formed between atouch object such as a finger, a pen or the like and the touch electrodeTE.

When the touch display device 100 provides the mutual-capacitance-basedtouch sensing function, the plurality of touch electrodes TE are dividedinto driving touch electrodes and sensing touch electrodes, and thetouch driving circuit 310 can supply a touch driving signal TDS to thedriving touch electrodes, sense the sensing touch electrodes, and outputsensing data, which are generated based on the sensed result. Here, thesensed result corresponds to a capacitance formed between the sensingtouch electrode and the driving touch electrode.

FIG. 3 illustrates the display panel 210 and touch panel TSP of thetouch display device 100 according to aspects of the present disclosure.

Referring to FIG. 3, in the touch display device 100 according toaspects of the present disclosure, the touch panel TSP may be locatedoutside of the display panel 210 or may be embedded in the display panel210.

When the touch panel TSP is located outside of the display panel 210,the touch panel TSP and the display panel 210 are manufactured indifferent manufacturing processes, and thereafter, the touch panel TSPand the display panel 210 can be bonded.

When the touch panel TSP is embedded in the display panel 210, aplurality of touch electrodes TE may be formed together during a processin which the display panel 210 is manufactured.

Meanwhile, the plurality of touch electrodes TE may be dedicatedelectrodes for touch sensing. In another embodiment, the plurality oftouch electrodes TE may be electrodes that may be utilized even whendisplay driving is performed. For example, the plurality of touchelectrodes TE may be used for display driving as a common electrode towhich a common voltage is applied, as well as being used for touchsensing.

Hereinafter, for convenience of description, it is assumed that thetouch display device 100 provides the self-capacitance-based touchsensing function, and the touch panel TSP is embedded in the displaypanel 210.

In an embodiment, in the touch panel TSP of the touch display device 100according to aspects of the present disclosure, a plurality of touchelectrodes TE may be arranged in a matrix pattern.

Each of the plurality of touch electrodes TE may be electricallyconnected to the touch driving circuit 310 through one or more touchlines TL.

A plurality of touch lines TL may overlap one or more touch electrodesTE. In some embodiments, the plurality of touch lines TL may beconnected to the touch driving circuit 310 by running along an areawhere the plurality of touch electrodes TE are not disposed.

Although the drawings illustrate that one touch electrode TE or an areaoccupied by one touch electrode TE has a square block shape, this ismerely an example for convenience of description; embodiments describedherein are not limited thereto. In an embodiment, the touch electrode TEmay be designed in various shapes, such as a diamond, a long rectangle,or the like. Although FIG. 2B illustrates that each touch electrode TEor an area occupied by each touch electrode TE has the same size andshape, this is merely an example for convenience of description;embodiments described herein are not limited thereto. In an embodiment,at least one of one or more sizes and shapes of one or more of theplurality of touch electrodes TE or one or more areas occupied by one ormore of the plurality of touch electrodes TE may be different from atleast one of one or more sizes and shapes of one or more other touchelectrodes of the plurality of touch electrodes TE or one or more areasoccupied by one or more other touch electrodes of the plurality of touchelectrodes TE.

One touch electrode TE may be a plate-type electrode having no openingor a mesh-type electrode having at least one opening.

As described above, the touch panel TSP may be embedded in the displaypanel 210. In this embodiment, a plurality of touch electrodes TE may beformed together in a process of manufacturing the display panel 210.

A size of an area in which one touch electrode TE is disposed maycorrespond to a size of an area in which one sub-pixel SP is disposed.In another embodiment, as illustrated in FIG. 3, a size of an area inwhich one touch electrode TE is disposed may be larger than a size of anarea in which one sub-pixel SP is disposed.

When a size of an area in which one touch electrode TE is disposed islarger than a size of an area in which two or more sub-pixels SP aredisposed, one touch electrode TE may overlap two or more data lines DLand two or more gate lines GL.

The touch driving circuit 310 and the touch controller 320 may beimplemented in respective separate components or integrated into onecomponent.

In an embodiment, the touch driving circuit 310 may be implemented in areadout IC, and the touch controller 320 may be implemented in a microcontrol unit MCU.

Meanwhile, the touch driving circuit 310 and the data driving circuit220 may be integrated and implemented in one integrated circuit chip.The driving circuit in which the touch driving circuit 310 and the datadriving circuit 220 are integrated may be implemented as one or moreintegrated circuit chips.

In an embodiment, a touch driving signal TDS may have one or more ofvarious types of signals, such as a square wave, a triangle wave, a sinewave, or the like. In an embodiment, when the touch driving signal TDSof the square wave is employed, such a touch driving signal TDS may be atype of a pulse width modulation (PWM) signal.

Referring to FIG. 3, one or more data lines DL and one or more gatelines GL can cross each other. That is, the data line DL may extend in afirst direction, and the gate line GL may extend in a second directiondifferent from the first direction.

For example, the first direction may be a vertical direction, and thesecond direction may be a horizontal direction. In another example, thefirst direction may be the horizontal direction, and the seconddirection may be the vertical direction.

The vertical direction and the horizontal direction described herein aremerely used for distinguishing two different directions. The verticaldirection and the horizontal direction are only relative directions toeach other and may be interchanged with each other. That is, thevertical direction described below may be expressed as the horizontaldirection or another direction according to viewing directions.Likewise, the horizontal direction described below may be expressed asthe vertical direction or another direction according to viewingdirections.

The vertical direction described herein may mean a direction in whichone data line DL disposed in the touch display device runs (extends),and the horizontal direction may mean a direction in which one gate lineGL disposed in the touch display device runs (extends).

FIG. 4 illustrates a part of an example split-type touch sensorstructure in the touch display device 100 according to aspects of thepresent disclosure.

Referring to FIG. 4, a touch panel TSP of the touch display device 100according to aspects of the present disclosure may include a pluralityof touch electrodes TE as touch sensors, and the plurality of touchelectrodes TE may be disposed by being separated from each other.

The plurality of touch electrodes TE are not only physically separatedfrom each other, but also electrically separated from one another. Sucha touch sensor structure is referred to as the split-type touch sensorstructure. However, two or more, or all, of the plurality of touchelectrodes TE may be electrically connected in the touch driving circuit310.

In the case of the split-type touch sensor structure, each of theplurality of touch electrodes TE may be electrically connected to atouch line TL through one or more contact holes CNT.

The plurality of touch electrodes TE may be located in the display areaDA. In some embodiments, one or more of the plurality of touchelectrodes TE (e.g., one or more outermost touch electrodes) may belocated in an edge area (an outer edge) of the display area DA ordisposed to extend up to the edge area (the outer edge) of the displayarea DA. Here, the display area DA is an area in which an image isdisplayed, and may be an area in which touch sensing is available.

As shown in FIG. 4, a plurality of touch lines TL electrically connectedto the plurality of touch electrodes TE may be located in the displayarea DA. In some embodiments, one or more, or all, of the plurality oftouch lines TL may be located in an edge of the display area DA.

As shown in FIG. 4, when the plurality of touch lines TL electricallyconnected to the plurality of touch electrodes TE are located in thedisplay area DA, the plurality of touch lines TL may be located in oneor more different layers from the plurality of touch electrodes TE andoverlap the plurality of touch electrodes TE.

Referring to FIG. 4, all of the plurality of touch lines TL may have alength equal or similar to one another. That is, the plurality of touchlines TL may be disposed from a pad portion 400 to which the touchdriving circuit 310 is connected to a location opposite to the padportion 400 regardless of a location of the contact hole CNT.

In another embodiment, a length of each of the plurality of touch linesTL may be different depending on a location of a touch electrode TEelectrically connected thereto. Accordingly, the length of each of theplurality of touch lines TL may be a distance from the pad portion 400to a location at which the corresponding contact hole CNT is located.

Referring to FIG. 4, in the case of the split-type touch sensorstructure, in a situation where one touch electrode TE is electricallyconnected to one touch line TL, the number of the plurality of touchlines TL is required as many as the number of the plurality of touchelectrodes. Here, the number of the plurality of touch lines TLcorresponds to the number of touch channels TCH through which signalsare input to, or output from, the touch driving circuit 310.

According to the illustration of FIG. 4, the split-type touch sensorstructure may include 16 touch electrodes TE arranged in 4 rows and 4columns, and include 16 touch lines TL for electrically connecting the16 touch electrodes TE to the touch driving circuit 310. Accordingly,the touch driving circuit 310 has 16 touch channels TCH.

In the case of the split-type touch sensor structure, the number oftouch electrodes TE is a value obtained by multiplying the number oftouch electrode rows by the number of touch electrode columns, and thenumber of touch lines TL and the number of touch channels TCH may be thesame as the number of touch electrodes TE.

In the case of the split-type touch sensor structure, as the number oftouch electrodes TE increases, the number of touch lines TL and thenumber of touch channels TCH may also increase.

When a size of the touch panel TSP is increased or the number of touchelectrodes TE is increased to improve the accuracy of touch sensing, thenumber of touch lines TL is increased, and the number of touch channelsTCH of the touch driving circuit 310 is also increased. Due to this, themanufacturing of the panel becomes complicated and difficult, and theinternal circuit structure of the touch driving circuit 310 may becomecomplicated due to the large number of touch channels TCH.

Meanwhile, the split-type touch sensor structure as shown in FIG. 4 maybe a touch sensor for sensing a touch based on a self-capacitance ofeach touch electrode TE, or be a touch sensor for sensing the touchbased on a mutual-capacitance between touch electrodes TE.

FIG. 5 illustrates a method for reducing the number of touch channels inthe split-type touch sensor structure of the touch display device 100according to aspects of the present disclosure.

Referring to FIG. 5, in order to reduce the number of touch lines TL andthe number of touch channels TCH, in the case of the split-type touchsensor structure, a size of the touch electrode TE may be increased.

According to the illustration of FIG. 5, by increasing a size of onetouch electrode TE, the number of touch electrodes TE disposed in thesame area may be reduced from 16 to 9. Accordingly, the number of touchlines TL and the number of touch channels TCH may be also reduced from16 to 9.

As described above, by increasing the size of one touch electrode TE,the number of touch electrodes TE, the number of touch lines TL, and thenumber of touch channels TCH can be reduced.

However, when the size of one touch electrode TE is increased, thenumber of points for sensing a change in capacitance in the same areamay be reduced. That is, when the size of one touch electrode TE isincreased, the number of touch nodes corresponding to touch coordinatesin the same area may be reduced from 16 to 9. Here, in the split-typetouch sensor structure, one touch node may be one touch electrode TE.

Accordingly, the accuracy of touch sensing may become poor. For example,when the size of the touch electrode is increased, the touch sensingcircuit 300 may not distinguish between two different touch locations.

Accordingly, according to embodiments of the present disclosure, awoven-type touch sensor structure is provided capable of reducing thenumber of touch lines TL and the number of touch channels TCH whileremaining the accuracy of touch sensing, by designing the number oftouch nodes corresponding to touch coordinates to be equal or similar tothe number of touch nodes in the split-type touch sensor structure asshown in FIG. 4.

FIG. 6 illustrates example touch sensor units in the woven-type touchsensor structure of the touch display device 100 according to aspects ofthe present disclosure.

Referring to FIG. 6, in the touch display device 100 according toaspects of the present invention, a basic unit of the woven-type touchsensor structure is referred to as a touch sensor unit TSU. That is, thewoven-type touch sensor structure includes two or more touch sensorunits TSU.

Herein, it is assumed that an area occupied by one touch sensor unit TSUincluded in the woven-type touch sensor structure is the same as an areaoccupied by that in the split-type touch sensor structure of FIG. 4.

Referring to FIG. 6, each touch sensor unit TSU may include fourhorizontal electrodes (H1-H4) and four vertical electrodes (V1-V4).

Although FIG. 6 illustrates that in each touch sensor unit TSU, fourhorizontal electrodes (H1-H4) and four vertical electrodes (V1-V4) aredisposed in a simple matrix form, such an electrode arrangement is forsimply representing, as an equivalent structure, an arrangementstructure of the four horizontal electrodes (H1-H4) and the fourvertical electrodes (V1-V4) according to the structure of the weave-typetouch sensor, and thus, in an actual implementation, the correspondingelectrode may be formed with a more complicated arrangement. This willbe described in more detail below.

FIG. 7 illustrates an example touch sensor unit TSU in the woven-typetouch sensor structure of the touch display device 100 according toaspects of the present disclosure.

Referring to FIG. 7, the touch display device according to aspects ofthe present disclosure can have the woven-type touch sensor structurecapable of reducing the number of touch lines TL and the number of touchchannels TCH while remaining the accuracy of touch sensing by designingthe number of touch nodes corresponding to touch coordinates to beequal, or similar, to the number of touch nodes in the split-type touchsensor structure as shown in FIG. 4.

Herein, “woven type” may mean that electrodes (H1-H4, V1A-V1D, V2A-V2D,V3A-V3D, V4A-V4D) are intricately entangled.

Referring to FIG. 7, a touch sensor unit TSU having the woven-type touchsensor structure according to embodiments of the present disclosure mayinclude a first horizontal electrode H1, a second horizontal electrodeH2, a third horizontal electrode H3 and a fourth horizontal electrodeH4.

Each of the first horizontal electrode H1, the second horizontalelectrode H2, the third horizontal electrode H3, and the fourthhorizontal electrode H4 runs in the horizontal direction. Each of thefirst horizontal electrode H1, the second horizontal electrode H2, thethird horizontal electrode H3, and the fourth horizontal electrode H4 isspaced apart from one another in the vertical direction.

Referring to FIG. 7, for electrically connecting the first horizontalelectrode H1, the second horizontal electrode H2, and the thirdhorizontal electrode H3 and the fourth horizontal electrode H4 to thetouch driving circuit 310, the touch sensor unit TSU having thewoven-type touch sensor structure according to embodiments of thepresent disclosure may further include a first horizontal touch lineHTL1, a second horizontal touch line HTL2, a third horizontal touch lineHTL3, and a fourth horizontal touch line HTL4.

Referring to FIG. 7, the touch sensor unit TSU having the woven-typetouch sensor structure according to embodiments of the presentdisclosure may include a plurality of first separation electrodes (V1A,V1B, V1C, and V1D) located between the first horizontal electrode H1 andthe second horizontal electrode H2 and spaced apart from one another inthe horizontal direction, a plurality of second separation electrodes(V2A, V2B, V2C, and V2D) located between the second horizontal electrodeH2 and the third horizontal electrode H3 and spaced apart from oneanother in the horizontal direction, a plurality of third separationelectrodes (V3A, V3B, V3C, and V3D) located between the third horizontalelectrode H3 and the fourth horizontal electrode H4 and spaced apartfrom one another in the horizontal direction, and a plurality of fourthseparation electrodes (V4A, V4B, V4C, and V4D) located adjacent to thefourth horizontal electrode H4 in the vertical direction and spacedapart from one another in the horizontal direction.

Referring to FIG. 7, to form first to fourth vertical electrodes (V1-V4)using the separation electrodes (V1A-V1D, V2A-V2D, V3A-V3D, andV4A-V4D), the touch sensor unit TSU having the woven-type touch sensorstructure according to embodiments of the present disclosure may includea first vertical touch line VTL1, a second vertical touch line VTL2, athird vertical touch line VTL3, and a fourth vertical touch line VTL4.

The first vertical touch line VTL1 may electrically connect a firstseparation electrode V1A disposed in a first column, a second separationelectrode V2A disposed in the first column, a third separation electrodeV3A disposed in the first column, and a fourth separation electrode V4Adisposed in the first column, thus, resulting in these separationelectrodes (V1A-V4A) being electrically connected together orsimultaneously to the touch driving circuit 310.

The first separation electrode V1A disposed in the first column, thesecond separation electrode V2A disposed in the first column, the thirdseparation electrode V3A disposed in the first column, and the fourthseparation electrode V4A disposed in the first column are included inthe first vertical electrode V1.

The second vertical touch line VTL2 may electrically connect a firstseparation electrode V1B disposed in a second column, a secondseparation electrode V2B disposed in the second column, a thirdseparation electrode V3B disposed in the second column, and a fourthseparation electrode V4B disposed in the second column, thus, resultingin these separation electrodes (V1B-V4B) being electrically connectedtogether or simultaneously to the touch driving circuit 310.

The first separation electrode V1B disposed in the second column, thesecond separation electrode V2B disposed in the second column, the thirdseparation electrode V3B disposed in the second column, and the fourthseparation electrode V4B disposed in the second column are included inthe second vertical electrode V2.

The third vertical touch line VTL3 may electrically connect a firstseparation electrode V1C disposed in a third column, a second separationelectrode V2C disposed in the third column, a third separation electrodeV3C disposed in the third column, and a fourth separation electrode V4Cdisposed in the third column, thus, resulting in these separationelectrodes (V1C-V4C) being electrically connected together orsimultaneously to the touch driving circuit 310.

The first separation electrode V1C disposed in the third column, thesecond separation electrode V2C disposed in the third column, the thirdseparation electrode V3C disposed in the third column, and the fourthseparation electrode V4C disposed in the third column are included inthe third vertical electrode V3.

The fourth vertical touch line VTL4 may electrically connect a firstseparation electrode V1D disposed in a fourth column, a secondseparation electrode V2D disposed in the fourth column, a thirdseparation electrode V3D disposed in the fourth column, and a fourthseparation electrode V4D disposed in the fourth column, thus, resultingin these separation electrodes (V1D-V4D) being electrically connectedtogether or simultaneously to the touch driving circuit 310.

The first separation electrode V1D disposed in the fourth column, thesecond separation electrode V2D disposed in the fourth column, the thirdseparation electrode V3D disposed in the fourth column, and the fourthseparation electrode V4D disposed in the fourth column are included inthe fourth vertical electrode V4.

According to the woven-type touch sensor structure according toembodiments of the present disclosure, in the touch sensor unit TSUoccupying the same area as that of the split-type touch sensor structureof FIG. 4, the four horizontal electrodes (H1-H4) and four verticalelectrodes (V1-V4) can be disposed, resulting in a total of 16 touchnodes being formed. Here, in the woven-type touch sensor structure, onetouch node means an area in which one horizontal electrode and onevertical electrode cross each other.

The touch sensor unit TSU having the woven-type touch sensor structureaccording to embodiments of the present disclosure may include fourhorizontal touch lines (HTL1-HTL4) and four vertical touch lines(VTL1-VTL4), resulting in a total of eight touch lines TL being needed.Thus, the number of touch lines TL needed in the woven-type touch sensorstructure can be reduced to half of the number (16) of touch lines TLneeded in the split-type touch sensor structure of FIG. 4.

Accordingly, the woven-type touch sensor structure according toembodiments of the present disclosure can maintain the same number oftouch nodes as the split-type touch sensor structure of FIG. 4, andthereby, the number of touch lines TL and the number of touch channelsTCH can be reduced while maintaining the accuracy of touch sensing.

Meanwhile, in the woven-type touch sensor structure shown in FIG. 7, thehorizontal electrodes (H1-H4) may be disposed in parallel to gate linesGL. Accordingly, an overlapping area between one horizontal electrode(one of H1-H4) and one gate line GL becomes large.

As a result, as the overlapping area between the horizontal electrodes(H1-H4) corresponding to touch electrodes TE and the gate lines GLincreases, parasitic capacitances between the touch electrodes TE andthe gate lines GL may become larger, and in turn, this may lead to poortouch sensitivity.

A modified woven-type touch sensor structure capable of reducingparasitic capacitance between touch electrodes TE and gate lines GLwhile maintaining the benefit of the woven-type touch sensor structureof FIG. 7 is described below.

FIG. 8 illustrates an example touch sensor unit TSU in the woven-typetouch sensor structure of the touch display device 100 according toaspects of the present disclosure. FIG. 9 illustrates an enlargement ofa partial area ENV1 in FIG. 8.

Referring to FIG. 8, a touch sensor unit TSU having the woven-type touchsensor structure according to embodiments of the present disclosure mayinclude a first horizontal electrode H1 including a plurality of firstelectrode parts HE1 spaced apart from one another in the horizontaldirection, and a plurality of first bridge parts HB1 connecting theplurality of first electrode parts HE1, a second horizontal electrode H2including a plurality of second electrode parts HE2 spaced apart from,or adjacent to, the first horizontal electrode H1 in the verticaldirection and spaced apart from one another in the horizontal direction,and a plurality of second bridge parts HB2 connecting the plurality ofsecond electrode part HE2, a third horizontal electrode H3 including aplurality of third electrode parts HE3 spaced apart from, or adjacentto, the second horizontal electrode H2 in the vertical direction andspaced apart from one another in the horizontal direction, and aplurality of third bridge parts HB3 connecting the plurality of thirdelectrode parts HE3, and a fourth horizontal electrode H4 including aplurality of fourth electrode parts HE4 spaced apart from, or adjacentto, the third horizontal electrode H3 in the vertical direction andspaced apart from one another in the horizontal direction, and aplurality of fourth bridge parts HB4 connecting the plurality of fourthelectrode parts HE4.

Referring to FIG. 8, the touch sensor unit TSU having the woven-typetouch sensor structure according to embodiments of the presentdisclosure may further include a first horizontal touch line HTL1electrically connected to the first horizontal electrode H1 and disposedto extend in the vertical direction, a second horizontal touch line HTL2electrically connected to the second horizontal electrode H2 anddisposed to extend in the vertical direction, a third horizontal touchline HTL3 electrically connected to the third horizontal electrode H3and disposed to extend in the vertical direction, and a fourthhorizontal touch line HTL4 electrically connected to the fourthhorizontal electrode H4 and disposed to extend in the verticaldirection.

Referring to FIG. 8, the touch sensor unit TSU having the woven-typetouch sensor structure according to embodiments of the presentdisclosure may include a plurality of first separation electrodes (VIA,V1B, V1C, and V1D) located between the plurality of first bridge partsHB1 and the plurality of second bridge parts HB2 and spaced apart fromone another in the horizontal direction, a plurality of secondseparation electrodes (V2A, V2B, V2C, and V2D) located between theplurality of second bridge parts HB2 and the plurality of third bridgeparts HB3 and spaced apart from one another in the horizontal direction,a plurality of third separation electrodes (V3A, V3B, V3C, and V3D)located between the plurality of third bridge parts HB3 and theplurality of fourth bridge parts HB4 and spaced apart from one anotherin the horizontal direction, and a plurality of fourth separationelectrodes (V4A, V4B, V4C, and V4D) located under, or adjacent to, eachof the plurality of fourth bridge parts HB4 and spaced apart from oneanother in the horizontal direction.

Referring to FIG. 8, in the woven-type touch sensor structure accordingto embodiments of the present disclosure, a first vertical electrode V1,a second vertical electrode V2, a third vertical electrode V3, and afourth vertical electrode V4 can be formed using the separationelectrodes (V1A-V1D, V2A-V2D, V3A-V3D, and V4A-V4D).

Referring to FIG. 8, to form the first vertical electrode V1, the secondvertical electrode V2, the third vertical electrode V3, and the fourthvertical electrode V4, the touch sensor unit TSU having the woven-typetouch sensor structure according to embodiments of the presentdisclosure may include a first vertical touch line VTL1, a secondvertical touch line VTL2, a third vertical touch line VTL3, and a fourthvertical touch line VTL4.

The first vertical touch line VTL1 may electrically connect a firstseparation electrode V1A disposed in a first column among the pluralityof first separation electrodes (V1A, V1B, V1C, and V1D) and a secondseparation electrode V2A disposed in the first column among theplurality of second separation electrodes (V2A, V2B, V2C, and V2D).

The first separation electrode V1A disposed in the first column, thesecond separation electrode V2A disposed in the first column, the thirdseparation electrode V3A disposed in the first column, and the fourthseparation electrode V4A disposed in the first column may be connectedby the first vertical touch line VTL1, and thereby, be included in thefirst vertical electrode V1.

The second vertical touch line VTL2 may electrically connect a firstseparation electrode V1B disposed in a second column among the pluralityof first separation electrodes (V1A, V1B, V1C, and V1D) and a secondseparation electrode V2B disposed in the second column among theplurality of second separation electrodes (V2A, V2B, V2C, and V2D).

The first separation electrode V1B disposed in the second column, thesecond separation electrode V2B disposed in the second column, the thirdseparation electrode V3B disposed in the second column, and the fourthseparation electrode V4B disposed in the second column may be connectedby the second vertical touch line VTL2, and thereby, be included in thesecond vertical electrode V2.

The third vertical touch line VTL3 may electrically connect a firstseparation electrode V1C disposed in a third column among the pluralityof first separation electrodes (V1A, V1B, V1C, and V1D) and a secondseparation electrode V2C disposed in the third column among theplurality of second separation electrodes (V2A, V2B, V2C, and V2D).

The first separation electrode V1C disposed in the third column, thesecond separation electrode V2C disposed in the third column, the thirdseparation electrode V3C disposed in the third column, and the fourthseparation electrode V4C disposed in the third column may be connectedby the third vertical touch line VTL3, and thereby, be included in thethird vertical electrode V3.

The fourth vertical touch line VTL4 may electrically connect a firstseparation electrode V1D disposed in a fourth column among the pluralityof first separation electrodes (V1A, V1B, V1C, and V1D) and a secondseparation electrode V2D disposed in the fourth column among theplurality of second separation electrodes (V2A, V2B, V2C, and V2D).

The first separation electrode V1D disposed in the fourth column, thesecond separation electrode V2D disposed in the fourth column, the thirdseparation electrode V3D disposed in the fourth column, and the fourthseparation electrode V4D disposed in the fourth column may be connectedby the fourth vertical touch line VTL4, and thereby, be included in thefourth vertical electrode V4.

Referring to FIG. 8, the touch driving circuit 310 may be electricallyconnected to the first horizontal electrode H1 through the firsthorizontal touch line HTL1, the second horizontal electrode H2 throughthe second horizontal touch line HTL2, the third horizontal electrode H3through the third horizontal touch line HTL3, and the fourth horizontalelectrode H4 through the fourth horizontal touch line HTL4.

The touch driving circuit 310 may be electrically connected to the firstvertical electrode V1 through the first vertical touch line VTL1, thesecond vertical electrode V2 through the second vertical touch lineVTL2, the third vertical electrode V3 through the third vertical touchline VTL3, and the fourth vertical electrode V4 through the fourthvertical touch line VTL4.

Referring to FIGS. 8 and 9, a length Lb in the vertical direction ofeach of the plurality of first bridge parts HB1 may be shorter than alength Le in the vertical direction of each of the plurality of firstelectrode parts HE1. A length Lb in the vertical direction of each ofthe plurality of second bridge parts HB2 may be shorter than a length Lein the vertical direction of each of the plurality of second electrodeparts HE2. A length Lb in the vertical direction of each of theplurality of third bridge parts HB3 may be shorter than a length Le inthe vertical direction of each of the plurality of third electrode partsHE3. A length Lb in the vertical direction of each of the plurality offourth bridge parts HB4 may be shorter than a length Le in the verticaldirection of each of the plurality of fourth electrode parts HE4.

An arrangement structure of the first to fourth horizontal touch lines(HTL1-HTL4) is described below.

Referring to FIG. 8, the first horizontal touch line HTL1 may beconnected to one of the plurality of first electrode parts HE1 and theplurality of first bridge parts HB1 of the first horizontal electrodeH1; the second horizontal touch line HTL2 may be connected to one of theplurality of second electrode parts HE2 and the plurality of secondbridge parts HB2 of the second horizontal electrode H2; the thirdhorizontal touch line HTL3 may be connected to one of the plurality ofthird electrode parts HE3 and the plurality of third bridge part HB3 ofthe third horizontal electrode H3; and the fourth horizontal touch lineHTL4 may be connected to one of the plurality of fourth electrode partsHE4 and the plurality of fourth bridge parts HB4 of the fourthhorizontal electrode H4.

Referring to FIG. 8, in one embodiment, the first horizontal touch lineHTL1 may be connected to one (a first electrode part HE1 in the firstcolumn) of the plurality of first electrode parts HE1 of the firsthorizontal electrode H1; the second horizontal touch line HTL2 may beconnected to one (a second electrode part HE2 in the second column) ofthe plurality of second electrode parts HE2 of the second horizontalelectrode H2; the third horizontal touch line HTL3 may be connected toone (a third electrode part HE3 in the third column) of the plurality ofthird electrode parts HE3 of the third horizontal electrode H3; and thefourth horizontal touch line HTL4 may be connected to one (a fourthelectrode part HE4 in the fourth column) of the plurality of fourthelectrode parts HE4 of the fourth horizontal electrode H4.

In another embodiment, the first horizontal touch line HTL1 may beconnected to one (a first bridge part BE1 in the first column) of theplurality of first bridge parts BE1 of the first horizontal electrodeH1; the second horizontal touch line HTL2 may be connected to one (asecond bridge part BE2 in the second column) of the plurality of secondbridge parts BE2 of the second horizontal electrode H2; the thirdhorizontal touch line HTL3 may be connected to one (a third bridge partBE3 in the third column) of the plurality of third bridge parts BE3 ofthe third horizontal electrode H3; and the fourth horizontal touch lineHTL4 may be connected to one (a fourth bridge part BE4 in the fourthcolumn) of the plurality of fourth bridge parts BE4 of the fourthhorizontal electrode H4.

Referring to FIG. 8, the first horizontal touch line HTL1 may overlap afirst electrode part HE1 disposed in the first column of the pluralityof first electrode parts HE1 of the first horizontal electrode H1, asecond electrode part HE2 disposed in the first column of the pluralityof second electrode parts HE2 of the second horizontal electrode H2, athird electrode part HE3 in the first column of the plurality of thirdelectrode parts HE3 of the third horizontal electrode H3; and a fourthelectrode part HE4 disposed in the first column of the plurality offourth electrode parts HE4 of the fourth horizontal electrode H4.

The second horizontal touch line HTL2 may overlap a second electrodepart HE2 disposed in the second column of the plurality of secondelectrode parts HE2 of the second horizontal electrode H2, a thirdelectrode part HE3 in the second column of the plurality of thirdelectrode parts HE3 of the third horizontal electrode H3; and a fourthelectrode part HE4 disposed in the second column of the plurality offourth electrode parts HE4 of the fourth horizontal electrode H4.

The third horizontal touch line HTL3 may overlap a third electrode partHE3 in the third column of the plurality of third electrode parts HE3 ofthe third horizontal electrode H3; and a fourth electrode part HE4disposed in the third column of the plurality of fourth electrode partsHE4 of the fourth horizontal electrode H4.

The fourth horizontal touch line HTL4 may overlap a fourth electrodepart HE4 disposed in the fourth column of the plurality of fourthelectrode parts HE4 of the fourth horizontal electrode H4.

Referring to FIG. 8, the first separation electrode V1B disposed in thesecond column and the second separation electrode V2B disposed in thesecond column may be disposed between the first horizontal touch lineHTL1 and the second horizontal touch line HTL2 (or a line in which thesecond horizontal touch line HTL2 runs).

As shown in FIG. 8, the first to fourth horizontal touch lines(HTL1-HLT4) may be disposed only up to points connected with the firstto fourth horizontal electrodes (H1-H4). In another embodiment, thefirst to fourth horizontal touch lines (HTL1-HLT4) may extend up to anupper end, or an upper edge, of the touch sensor unit TSU or an upperend, or an upper edge, of the touch panel TSP running beyond pointsconnected with the first to fourth horizontal electrodes (H1-H4). Forexample, the third separation electrode V3C and the fourth separationelectrode V4C disposed in the third column may be disposed between thesecond horizontal touch line HTL2 and the third horizontal touch lineHTL3. The first separation electrode V1C and the second separationelectrode V2C disposed in the third column may be also disposed betweena line in which the second horizontal touch line HTL2 runs and a line inwhich the third horizontal touch line HTL3 runs.

The first separation electrode V1D disposed in the fourth column and thesecond separation electrode V2D disposed in the fourth column may bedisposed between a line in which the third horizontal touch line HTL3runs and a line in which the fourth horizontal touch line HTL4 runs.

An arrangement structure of the first to fourth vertical touch lines(VTL1-VTL4) is described below.

Referring to FIG. 8, the first vertical touch line VTL1 may overlap thefirst separation electrode V1A disposed in the first column among theplurality of first separation electrodes (V1A, V1B, V1C, and V1D), andoverlap the second separation electrode V2A disposed in the first columnamong the plurality of second separation electrodes (V2A, V2B, V2C, andV2D).

The first vertical touch line VTL1 may overlap the second bridge partHB2 of the second horizontal electrode H2 located between the firstseparation electrode V1A disposed in the first column and the secondseparation electrode V2A disposed in the first column.

The second vertical touch line VTL2 may overlap the first separationelectrode V1B disposed in the second column among the plurality of firstseparation electrodes (V1A, V1B, V1C, and V1D), and overlap the secondseparation electrode V2B disposed in the second column among theplurality of second separation electrodes (V2A, V2B, V2C, and V2D).

The second vertical touch line VTL2 may overlap the second bridge partHB2 of the second horizontal electrode H2 located between the firstseparation electrode V1B disposed in the second column and the secondseparation electrode V2B disposed in the second column.

The third vertical touch line VTL3 may overlap the first separationelectrode V1C disposed in the third column among the plurality of firstseparation electrodes (V1A, V1B, V1C, and V1D), and overlap the secondseparation electrode V2C disposed in the third column among theplurality of second separation electrodes (V2A, V2B, V2C, and V2D).

The third vertical touch line VTL3 may overlap the second bridge partHB2 of the second horizontal electrode H2 located between the firstseparation electrode V1C disposed in the third column and the secondseparation electrode V2C disposed in the third column.

The fourth vertical touch line VTL4 may overlap the first separationelectrode V1D disposed in the fourth column among the plurality of firstseparation electrodes (V1A, V1B, V1C, and V1D), and overlap the secondseparation electrode V2D disposed in the fourth column among theplurality of second separation electrodes (V2A, V2B, V2C, and V2D).

The fourth vertical touch line VTL4 may overlap the second bridge partHB2 of the second horizontal electrode H2 located between the firstseparation electrode V1D disposed in the fourth column and the secondseparation electrode V2D disposed in the fourth column.

Referring to FIG. 8, a plurality of gate lines GL are signal lines forcarrying gate signals to the plurality of sub-pixels SP for displaydriving, and are spaced apart from one another in the verticaldirection. Each of the plurality of gate lines GL may be disposed toextend in the horizontal direction.

In the case of the woven-type touch sensor structure of FIG. 8, due tothe shape of each of first to fourth horizontal electrodes (H1-H4), anarea in which the first to fourth horizontal electrodes (H1-H4) overlapthe gate lines GL can be reduced.

For example, the plurality of gate lines GL may include a gate line GLthat does not overlap the plurality of first bridge parts HB1 of thefirst horizontal electrode H1, while overlapping only the plurality offirst electrode parts HE1 of the first horizontal electrode HE As such agate line GL does not overlap the plurality of first bridge parts HB1 ofthe first horizontal electrode H1, an area overlapping the firsthorizontal electrode H1 can be reduced.

As a consequence, parasitic capacitances between the first to fourthhorizontal electrodes (H1-H4) and the gate lines GL can be reduced.

In the case of the woven-type touch sensor structure of FIG. 8, as eachof the first to fourth vertical electrodes (V1-V4) includes a pluralityof separate electrodes, the number of gate lines GL overlapping each ofthe first to fourth vertical electrodes (V1-V4) can be reduced.

As a consequence, parasitic capacitances between the first to fourthvertical electrodes (V1-V4) and the gate lines GL can be reduced.

As described above, in the case of the woven-type touch sensor structureof FIG. 8, since parasitic capacitances between the first to fourthhorizontal electrodes (H1-H4) and the gate lines GL can be reduced, andparasitic capacitances between the first to fourth vertical electrodes(V1-V4) and the gate lines GL can be reduced, touch sensitivity can besignificantly improved.

Referring to FIG. 8, a plurality of data lines DL are signal lines forcarrying image signals to the plurality of sub-pixels SP for displaydriving, and are spaced apart from one another in the horizontaldirection. Each of the plurality of data lines DL may extend in thevertical direction.

The first horizontal touch line HTL1, the second horizontal touch lineHTL2, the third horizontal touch line HTL3, the first vertical touchline VTL1, the second vertical touch line VTL2, and the like may bedisposed parallel to the plurality of data lines DL. The fourthhorizontal touch line HTL4, the third vertical touch line VTL3, and thefourth vertical touch line VTL4 may also be disposed parallel to theplurality of data lines DL.

In the case of the woven-type touch sensor structure of FIG. 8, at leastone of the first to fourth horizontal electrodes (H1-H4) does notoverlap all of one data line DL. As a consequence, parasiticcapacitances between the first to fourth horizontal electrodes (H1-H4)and the data lines DL can be reduced.

In the case of the woven-type touch sensor structure of FIG. 8, as eachof the first to fourth vertical electrodes (V1-V4) includes theplurality of separate electrodes, an area in which each of the first tofourth vertical electrodes (V1-V4) overlaps one data line DL can bereduced. As a consequence, parasitic capacitances between the first tofourth vertical electrodes (V1-V4) and the data line DL can be reduced.

As described above, in the case of the woven-type touch sensor structureof FIG. 8, as parasitic capacitances between the touch electrodes(H1-H4, and V1-V4) and the display driving wires (GL and DL) can bereduced, therefore, touch sensitivity can be significantly improved.

In the woven-type touch sensor structure according to embodiments of thepresent disclosure, each of the first horizontal electrode H1, thesecond horizontal electrode H2, the third horizontal electrode H3, andthe plurality of first separation electrodes (V1A, V1B, V1C, and V1D)and the plurality of second separation electrodes (V2A, V2B, V2C, andV2D) may be formed such that one or more first layer electrodes L1E andone or more second layer electrodes L2E are located in different layersand electrically connected.

Referring to FIG. 9, each of the second electrode part HE2 of the secondhorizontal electrode H2, the second bridge part HB2 of the secondhorizontal electrode H2, the first separation electrode V1B disposed inthe second column, and the second separation electrode V2B disposed inthe second column may include a first layer electrode L1E and a secondlayer electrode L2E that are electrically separated by an insulatinglayer INS.

In this regard, even when each of the second electrode part HE2 and thesecond bridge part HB2 of the second horizontal electrode H2 includesthe first layer electrode L1E and the second layer electrode L2E locatedin different layers, the first layer electrode L1E and the second layerelectrode L2E included in each of the second electrode part HE2 and thesecond bridge part HB2 of the second horizontal electrode H2 in an areaof the second horizontal electrode H2 may be electrically connected toeach other through a contact hole of the insulating layer INS at atleast one point.

Even when each of the first separation electrode V1B disposed in thesecond column and the second separation electrode V2B disposed in thesecond column, which are separation electrodes included in the secondvertical electrode V2, includes the first layer electrode L1E and thesecond layer electrode L2E located in different layers, the first layerelectrode L1E and the second layer electrode L2E included in the firstseparation electrode V1B in an area of the first separation electrodeV1B disposed in the second column may be electrically connected througha contact hole of the insulating layer INS at at least one point, andthe first layer electrode L1E and the second layer electrode L2Eincluded in the second separation electrode V2B in an area of the secondseparation electrode V2B disposed in the second column may beelectrically connected through a contact hole of the insulating layerINS at at least one point. The contact structure in the electrode areaof the first and second layer electrodes L1E and L2E described above maybe substantially equally applied to FIGS. 11, 13, and 15.

Meanwhile, the second layer electrode L2E included in the secondelectrode part HE2 and the second bridge part HB2 included in the secondhorizontal electrode H2, and the second layer electrode L2E included inthe first separation electrode V1B and the second separation electrodeV2B included in the second vertical electrode V2 may be formed of thesame material and located in the same layer; for distinguishing fromeach other in drawings and convenience of description, they are shown indifferent colors (brightness) in FIG. 9. Such a representation for thesecond layer electrode L2E in the drawings is equally applied to FIGS.11, 13, and 15 below.

For example, the first layer electrode L1E may include the same materialas a pixel electrode disposed in a sub-pixel SP. The second layerelectrode L2E may include the same material as a gate line GL or thegate electrode of a transistor in the sub-pixel SP.

FIG. 10 illustrates an example touch sensor unit TSU in the woven-typetouch sensor structure of the touch display device 100 according toaspects of the present disclosure. FIG. 11 illustrates an enlargement ofa partial area ENV2 in FIG. 10.

The woven-type touch sensor structure shown in FIG. 10 is obtained bychanging some configurations in the touch sensor structure of FIG. 8.Taking account of such a similarity, discussions will be conducted byfocusing on configurations that are different from the touch sensorstructure of FIG. 8 mainly described.

Referring to FIG. 10, in the touch sensor unit TSU having the woven-typetouch sensor structure according to embodiments of the presentdisclosure, each of a plurality of first separation electrodes (V1A,V1B, V1C, and V1D), a plurality of second separation electrodes (V2A,V2B, V2C, and V2D), and a plurality of third separation electrodes (V3A,V3B, V3C, and V3D) may have a protrusion structure.

For example, a first separation electrode V1A disposed in a first columnmay include a first protrusion part PP interposed between a firstelectrode part HE1 and a second electrode part HE2 disposed in the samecolumn. For example, a second separation electrode V2A disposed in thefirst column may include a second protrusion part PP interposed betweenthe second electrode part HE2 and a third electrode part HE3 disposed inthe same column. For example, a third separation electrode V3A disposedin the first column may include a third protrusion part PP interposedbetween the third electrode part HE3 and a fourth electrode part HE4disposed in the same column.

As such a protrusion structure is employed, first to fourth verticaltouch lines (VTL1-VTL4) may have a changed arrangement structure asfollows.

Referring to FIG. 10, first to fourth vertical touch lines (VTL1-VTL4)can be connected to protrusion parts PP formed in first to fourthseparation electrodes (V1A-V1D, V2A-V2D, V3A-V3D, and V4A-V4D).

More specifically, the first vertical touch line VTL1 can electricallyconnect the protrusion parts PP of the separation electrodes (VIA, V2A,V3A, and V4A) disposed in the first column to one another. The secondvertical touch line VTL2 can electrically connect the protrusion partsPP of the separation electrodes (V1B, V2B, V3B, and V4B) disposed in asecond column to one another. The third vertical touch line VTL3 canelectrically connect the protrusion parts PP of the separationelectrodes (V1C, V2C, V3C, and V4C) disposed in a third column to oneanother. The fourth vertical touch line VTL4 can electrically connectthe protrusion parts PP of the separation electrodes (V1D, V2D, V3D, andV4D) disposed in a fourth column to one another.

Referring to FIG. 10, the touch sensor unit TSU of the woven-type touchsensor structure according to embodiments of the present disclosure mayinclude a first contact hole CNT1 through which the first protrusionpart PP of the first separation electrode VIA disposed in the firstcolumn and the first vertical touch line VTL1 are connected, a secondcontact hole CNT2 through which the second protrusion part PP of thesecond separation electrode V2A disposed in the first column and thefirst vertical touch line VTL1 are connected, and a third contact holeCNT3 through which the third protrusion part PP of the third separationelectrode V3A disposed in the first column and the first vertical touchline VTL1 are connected.

The touch sensor unit TSU of the woven-type touch sensor structureaccording to embodiments of the present disclosure may include a firstcontact hole CNT1 through which the first protrusion part PP of thefirst separation electrode V1B disposed in the second column and thesecond vertical touch line VTL2 are connected, a second contact holeCNT2 through which the second protrusion part PP of the secondseparation electrode V2B disposed in the second column and the secondvertical touch line VTL2 are connected, and a third contact hole CNT3through which the third protrusion part PP of the third separationelectrode V3B disposed in the second column and the second verticaltouch line VTL2 are connected.

The touch sensor unit TSU of the woven-type touch sensor structureaccording to embodiments of the present disclosure may include a firstcontact hole CNT1 through which the first protrusion part PP of thefirst separation electrode V1C disposed in the third column and thethird vertical touch line VTL3 are connected, a second contact hole CNT2through which the second protrusion part PP of the second separationelectrode V2C disposed in the third column and the third vertical touchline VTL3 are connected, and a third contact hole CNT3 through which thethird protrusion part PP of the third separation electrode V3C disposedin the third column and the third vertical touch line VTL3 areconnected.

The touch sensor unit TSU of the woven-type touch sensor structureaccording to embodiments of the present disclosure may include a firstcontact hole CNT1 through which the first protrusion part PP of thefirst separation electrode V1D disposed in the fourth column and thefourth vertical touch line VTL4 are connected, a second contact holeCNT2 through which the second protrusion part PP of the secondseparation electrode V2D disposed in the fourth column and the fourthvertical touch line VTL4 are connected, and a third contact hole CNT3through which the third protrusion part PP of the third separationelectrode V3D disposed in the fourth column and the fourth verticaltouch line VTL4 are connected.

Referring to FIG. 10, in the touch sensor unit TSU having the woven-typetouch sensor structure according to embodiments of the presentdisclosure, the first vertical touch line VTL1 may overlap the secondelectrode part HE2 and the third electrode part HE3, which are disposedin the same column, and not overlap a first bridge part HB1, a secondbridge part HB2, and a third bridge part HB3, which are disposed in thesame column.

The first vertical touch line VTL1 may overlap the second electrode partHE2, the third electrode part HE3, and the fourth electrode part HE4,which are disposed in the same column, and be electrically separatedfrom the overlapping second to fourth electrode parts (HE2, HE3, andHE4).

In this situation, a first horizontal touch line HTL1 may overlap thesecond electrode part HE2, the third electrode part HE3, and the fourthelectrode part HE4, which overlap the first vertical touch line VTL1, aswell as the first electrode part HE1. The first horizontal touch lineHTL1 may be electrically separated from the second electrode part HE2,the third electrode part HE3, and the fourth electrode part HE4, whichoverlap the first vertical touch line VTL1, while being electricallyconnected to the first electrode part HE1.

In another embodiment, the first vertical touch line VTL1 may overlapthe first electrode part HE1, the second electrode part HE2, the thirdelectrode part HE3, and the fourth electrode part HE4, which aredisposed in the same column, and be electrically separated from theoverlapping first to fourth electrode parts (HE1, HE2, HE3, and HE4).

In this situation, the first horizontal touch line HTL1 may overlap thefirst electrode part HE1, the second electrode part HE2, the thirdelectrode part HE3, and the fourth electrode part HE4, which overlap thefirst vertical touch line VTL1. The first horizontal touch line HTL1 maybe electrically connected with the first electrode part HE1 of the firstelectrode part HE1, the second electrode part HE2, the third electrodepart HE3, and the fourth electrode part HE4, which overlap the firstvertical touch line VTL1, and be electrically separated from the secondelectrode part HE2, the third electrode part HE3, and the fourthelectrode part HE4.

In the touch sensor unit TSU having the woven-type touch sensorstructure according to embodiments of the present disclosure, the secondvertical touch line VTL2 may overlap the second electrode part HE2 andthe third electrode part HE3, which are disposed in the same column, andnot overlap the first bridge part HB1, the second bridge part HB2, andthe third bridge part HB3, which are disposed in the same column.

The second vertical touch line VTL2 may overlap the second electrodepart HE2, the third electrode part HE3, and the fourth electrode partHE4, which are disposed in the same column, and be electricallyseparated from the overlapping second to fourth electrode parts (HE2,HE3, and HE4).

In this situation, a second horizontal touch line HTL2 may overlap thethird electrode part HE3 and the fourth electrode part HE4, whichoverlap the second vertical touch line VTL2, as well as the secondelectrode part HE2. The second horizontal touch line HTL2 may beelectrically separated from the third electrode part HE3 and the fourthelectrode part HE4, which overlap the first vertical touch line VTL1,while being electrically connected to the second electrode part HE2.

In another embodiment, the second vertical touch line VTL2 may overlapthe first electrode part HE1, the second electrode part HE2, the thirdelectrode part HE3, and the fourth electrode part HE4, which aredisposed in the same column, and be electrically separated from theoverlapping first to fourth electrode parts (HE1, HE2, HE3, and HE4).

In this situation, the second horizontal touch line HTL2 may overlap thefirst electrode part HE1, the second electrode part HE2, the thirdelectrode part HE3, and the fourth electrode part HE4, which overlap thesecond vertical touch line VTL2. The second horizontal touch line HTL2may be electrically connected with the second electrode part HE2 of thefirst electrode part HE1, the second electrode part HE2, the thirdelectrode part HE3, and the fourth electrode part HE4, which overlap thesecond vertical touch line VTL2, and be electrically separated from thefirst electrode part HE1, the third electrode part HE3, and the fourthelectrode part HE4.

In the touch sensor unit TSU having the woven-type touch sensorstructure according to embodiments of the present disclosure, the thirdvertical touch line VTL3 may overlap the second electrode part HE2 andthe third electrode part HE3, which are disposed in the same column, andnot overlap the first bridge part HB1, the second bridge part HB2, andthe third bridge part HB3, which are disposed in the same column.

The third vertical touch line VTL3 may overlap the second electrode partHE2, the third electrode part HE3, and the fourth electrode part HE4,which are disposed in the same column, and be electrically separatedfrom the overlapping second to fourth electrode parts (HE2, HE3, andHE4).

In this situation, a third horizontal touch line HTL3 may overlap thefourth electrode part HE4 overlapping the third vertical touch lineVTL3, as well as the third electrode part HE3. The third horizontaltouch line HTL3 may be electrically separated from the fourth electrodepart HE4 overlapping the third vertical touch line VTL3, while beingelectrically connected to the third electrode part HE3.

In another embodiment, the third vertical touch line VTL3 may overlapthe first electrode part HE1, the second electrode part HE2, the thirdelectrode part HE3, and the fourth electrode part HE4, which aredisposed in the same column, and be electrically separated from theoverlapping first to fourth electrode parts (HE1, HE2, HE3, and HE4).

In this situation, the third horizontal touch line HTL3 may overlap thefirst electrode part HE1, the second electrode part HE2, the thirdelectrode part HE3, and the fourth electrode part HE4, which overlap thethird vertical touch line VTL3. The third horizontal touch line HTL3 maybe electrically connected with the third electrode part HE3 of the firstelectrode part HE1, the second electrode part HE2, the third electrodepart HE3, and the fourth electrode part HE4, which overlap the thirdvertical touch line VTL3, and be electrically separated from the firstelectrode part HE1, the second electrode part HE2, and the fourthelectrode part HE4.

In the touch sensor unit TSU having the woven-type touch sensorstructure according to embodiments of the present disclosure, the fourthvertical touch line VTL4 may overlap the second electrode part HE2 andthe third electrode part HE3, which are disposed in the same column, andnot overlap the first bridge part HB1, the second bridge part HB2, andthe third bridge part HB3, which are disposed in the same column.

The area of the first protrusion part PP of the first separationelectrode V1A included in the first vertical electrode V1 may besubstantially, or nearly, the same as the area of the first bridge partHB1 of the first horizontal electrode H1.

Accordingly, an area of each of the first to fourth horizontalelectrodes (H1-H4) may be substantially, or nearly, the same as an areaof each of the first to fourth vertical electrodes (V1-V4). As a result,the degradation of touch sensitivity due to a difference in electrodeareas can be prevented.

In the woven-type touch sensor structure of FIG. 10, similarly or nearlyequally to the woven-type touch sensor structure of FIG. 8, parasiticcapacitances between the touch electrodes (H1-H4, and V1-V4) and thedisplay driving lines (GL and DL) can be reduced, and thereby, touchsensitivity can be improved.

Further, in the woven-type touch sensor structure of FIG. 10, adifference between an area of each of the first to fourth horizontalelectrodes (H1-H4) and an area of each of the first to fourth verticalelectrodes (V1-V4) can be reduced, and thereby, touch sensitivity can bemore improved.

Meanwhile, in the woven-type touch sensor structure of FIG. 10, thefirst to fourth vertical touch lines (VTL1-VTL4) may be connected toprotrusion parts PP formed in first to fourth separation electrodes(V1A-V1D, V2A-V2D, V3A-V3D, and V4A-V4D).

Accordingly, the first to fourth vertical touch lines (VTL1-VTL4) may bedisposed to overlap the first to fourth horizontal electrodes (H1-H4).The first to fourth horizontal touch lines (HTL1-HTL4) may be alsodisposed to overlap the first to fourth horizontal electrodes (H1-H4).

Referring to FIG. 11, each of the first electrode part HE1 of the firsthorizontal electrode H1, the second electrode part HE2 of the secondhorizontal electrode H2, the first separation electrode V1A disposed inthe first column, and the first separation electrode V1B in the secondcolumn may include a first layer electrode L1E and a second layerelectrode L2E that are electrically separated by an insulating layerINS.

Referring to FIG. 11, the first protrusion part PP of the firstseparation electrode V1A disposed in the first column may also include afirst layer electrode L1E and a second layer electrode L2E.

For example, the first layer electrode L1E may include the same materialas a pixel electrode disposed in a sub-pixel SP. The second layerelectrode L2E may include the same material as a gate line GL or thegate electrode of a transistor in the sub-pixel SP.

FIG. 12 illustrates an example touch sensor unit TSU in the woven-typetouch sensor structure of the touch display device 100 according toaspects of the present disclosure. FIG. 13 illustrates an enlargement ofa partial area ENV3 in FIG. 12.

Referring to FIG. 12, a touch sensor unit TSU having the woven-typetouch sensor structure according to embodiments of the presentdisclosure may include a first vertical electrode V1 disposed to extendin the vertical direction, a second vertical electrode V2 spaced apartfrom the first vertical electrode V1 in the horizontal direction anddisposed to extend in the vertical direction, a third vertical electrodeV3 spaced apart from the second vertical electrode V2 in the horizontaldirection and disposed to extend in the vertical direction, and a fourthvertical electrode V4 spaced apart from the third vertical electrode V3in the horizontal direction and disposed to extend in the verticaldirection.

Referring to FIG. 12, the touch sensor unit TSU having the woven-typetouch sensor structure may include a first vertical touch line VTL1electrically connected to the first vertical electrode V1 and disposedto extend in the vertical direction, a second vertical touch line VTL2electrically connected to the second vertical electrode V2 and disposedto extend in the vertical direction, a third vertical touch line VTL3electrically connected to the third vertical electrode V3 and disposedto extend in the vertical direction, and a fourth vertical touch lineVTL4 electrically connected to the fourth vertical electrode V4 anddisposed to extend in the vertical direction.

Referring to FIG. 12, the touch sensor unit TSU having the woven-typetouch sensor structure may include a plurality of first separationelectrodes (H1A, H1B, H1C, and H1D) located between the first verticalelectrode V1 and the second vertical electrode V2 and spaced apart fromone another in the vertical direction, a plurality of second separationelectrodes (H2A, H2B, H2C, and H2D) located between the second verticalelectrode V2 and the third vertical electrode V3 and spaced apart fromone another in the vertical direction, a plurality of third separationelectrodes (H3A, H3B, H3C, and H3D) located between the third verticalelectrode V3 and the fourth vertical electrode V4 and spaced apart fromone another in the vertical direction, and a plurality of fourthseparation electrodes (H4A, H4B, H4C, and H4D) located adjacent to thefourth vertical electrode V4 in the horizontal direction and spacedapart from one another in the vertical direction.

Referring to FIG. 12, in the woven-type touch sensor structure accordingto embodiments of the present disclosure, a first horizontal electrodeH1, a second horizontal electrode H2, a third horizontal electrode H3,and a fourth horizontal electrode H4 can be formed using the separationelectrodes (H1A-H1D, H2A-H2D, H3A-H3D, and H4A-H4D).

Referring to FIG. 12, to form the first horizontal electrode H1, thesecond horizontal electrode H2, the third horizontal electrode H3, andthe fourth horizontal electrode H4, the touch sensor unit TSU of thewoven-type touch sensor structure according to embodiments of thepresent disclosure may include a first horizontal connection line HCL1,a second horizontal connection line HCL2, a third horizontal connectionline HLC3, and a fourth horizontal connection line HCL4.

The first horizontal connection line HCL1 can electrically connect afirst separation electrode H1A disposed in a first row among theplurality of first separation electrodes (H1A, H1B, H1C, and H1D), asecond separation electrode H2A disposed in the first row among theplurality of second separation electrodes (H2A, H2B, H2C, and H2D), athird separation electrode H3A disposed in the first row among theplurality of third separation electrodes (H3A, H3B, H3C, and H3D), and afourth separation electrode H4A disposed in the first row among theplurality of fourth separation electrodes (H4A, H4B, H4C, and H4D).

The first separation electrode H1A disposed in the first row, the secondseparation electrode H2A disposed in the first row, the third separationelectrode H3A disposed in the first row, and the fourth separationelectrode H4A disposed in the first row may be electrically connected bythe first horizontal connection line HCL1, and thereby, be included inthe first horizontal electrode H1.

The second horizontal connection line HCL2 can electrically connect afirst separation electrode H1B disposed in a second row among theplurality of first separation electrodes (H1A, H1B, H1C, and H1D), asecond separation electrode H2B disposed in the second row among theplurality of second separation electrodes (H2A, H2B, H2C, and H2D), athird separation electrode H3B disposed in the second row among theplurality of third separation electrodes (H3A, H3B, H3C, and H3D), and afourth separation electrode H4B disposed in the second row among theplurality of fourth separation electrodes (H4A, H4B, H4C, and H4D).

The first separation electrode H1B disposed in the second row, thesecond separation electrode H2B disposed in the second row, the thirdseparation electrode H3B disposed in the second row, and the fourthseparation electrode H4B disposed in the second row may be electricallyconnected by the second horizontal connection line HCL2, and thereby, beincluded in the second horizontal electrode H2.

The third horizontal connection line HCL3 can electrically connect afirst separation electrode H1C disposed in a third row among theplurality of first separation electrodes (H1A, H1B, H1C, and H1D), asecond separation electrode H2C disposed in the third row among theplurality of second separation electrodes (H2A, H2B, H2C, and H2D), athird separation electrode H3C disposed in the third row among theplurality of third separation electrodes (H3A, H3B, H3C, and H3D), and afourth separation electrode H4C disposed in the third row among theplurality of fourth separation electrodes (H4A, H4B, H4C, and H4D).

The first separation electrode H1C disposed in the third row, the secondseparation electrode H2C disposed in the third row, the third separationelectrode H3C disposed in the third row, and the fourth separationelectrode H4C disposed in the third row may be electrically connected bythe third horizontal connection line HCL3, and thereby, be included inthe third horizontal electrode H3.

The fourth horizontal connection line HCL4 can electrically connect afirst separation electrode H1D disposed in a fourth row among theplurality of first separation electrodes (H1A, H1B, H1C, and H1D), asecond separation electrode H2D disposed in the fourth row among theplurality of second separation electrodes (H2A, H2B, H2C, and H2D), athird separation electrode H3D disposed in the fourth row among theplurality of third separation electrodes (H3A, H3B, H3C, and H3D), and afourth separation electrode H4D disposed in the fourth row among theplurality of fourth separation electrodes (H4A, H4B, H4C, and H4D).

The first separation electrode H1D disposed in the fourth row, thesecond separation electrode H2D disposed in the fourth row, the thirdseparation electrode H3D disposed in the fourth row, and the fourthseparation electrode H4D disposed in the fourth row may be electricallyconnected by the fourth horizontal connection line HCL4, and thereby, beincluded in the fourth horizontal electrode H4.

Referring to FIG. 12, to electrically connect the first to fourthhorizontal electrodes (H1-H4) with the touch driving circuit 310, thetouch sensor unit TSU having the woven-type touch sensor structureaccording to embodiments of the present disclosure may include a firsthorizontal touch line HTL1 electrically connected to the firsthorizontal connection line HCL1 and disposed to extend in the verticaldirection, a second horizontal touch line HTL2 electrically connected tothe second horizontal connection line HCL2 and disposed to extend in thevertical direction, a third horizontal touch line HTL3 electricallyconnected to the third horizontal connection line HCL3 and disposed toextend in the vertical direction, and a fourth horizontal touch lineHTL4 electrically connected to the fourth horizontal connection lineHCL4 and disposed to extend in the vertical direction.

Referring to FIG. 12, the first vertical touch line VTL1, the secondvertical touch line VTL2, the third vertical touch line VTL3, and thefourth vertical touch line VTL4 may be disposed parallel to data linesDL disposed in the vertical direction.

The first horizontal touch line HTL1, the second horizontal touch lineHTL2, the third horizontal touch line HTL3, and the fourth horizontaltouch line HTL4 may be disposed parallel to the data lines DL.

The first horizontal connection line HCL1, the second horizontalconnection line HCL2, the third horizontal connection line HCL3, and thefourth horizontal connection line HCL4 may be disposed to cross the datalines DL.

Referring to FIG. 12, gate lines GL may be disposed to extend in thehorizontal direction, and disposed parallel to the first horizontalconnection line HCL1, the second horizontal connection line HCL2, thethird horizontal connection line HCL3, and the fourth horizontalconnection line HCL4.

In one touch sensor unit TSU, one gate line GL may run across all of thefirst vertical electrode V1, the first separation electrode H1A, thesecond vertical electrode V2, the second separation electrode H2A, thethird vertical electrode V3, the third separation electrode H3A, thefourth vertical electrode V4, and the fourth separation electrode H4A.

In one touch sensor unit TSU, one gate line GL may overlap four verticalelectrodes (V1-V4) and four separate electrodes (H1A, H2A, H3A, andH4A). Accordingly, an overlapping area between one gate line GL and oneelectrode (one of V1, V2, V3, V4, H1A, H2A, H3A, and H4A) can bereduced.

In the case of the woven-type touch sensor structure according toembodiments of the present disclosure, parasitic capacitances formedbetween the horizontal electrodes (H1-H4) and the vertical electrodes(V1-V4) corresponding to touch electrodes TE and gate lines GL can bereduced, and thereby, touch sensitivity can be improved.

In some embodiments, each of the first horizontal electrode V1, thesecond horizontal electrode V2, the third horizontal electrode V3, andthe plurality of first separation electrodes (H1A, H1B, H1C, and H1D)and the plurality of second separation electrodes (H2A, H2B, H2C, andH2D) may be formed such that one or more first layer electrodes L1E andone or more second layer electrodes L2E located in different layers withbeing separated by an insulating layer INS interposed therebetween aredisposed to be electrically connected.

Referring to FIG. 13, the second vertical electrode V2 may include afirst layer electrode L1E and a second layer electrode L2E. Each of thefirst separation electrode H1A disposed in the first row and the secondseparation electrode H2A disposed in the first row may include a firstlayer electrode L1E and a second layer electrode L2E, which areelectrically separated from each other by the insulating layer INS.

The first horizontal connection line HCL1 connecting the firstseparation electrode H1A disposed in the first row and the secondseparation electrode H2A disposed in the first row may include a secondlayer electrode L2E.

The first horizontal connection line HCL1 including the second layerelectrode L2E may run over or under the first layer electrode L1E of thesecond vertical electrode V2, and be electrically separated from thefirst layer electrode L1E of the second vertical electrode V2 by theinsulating layer INS or another insulating layer.

For example, the first layer electrode L1E may include the same materialas a pixel electrode disposed in a sub-pixel SP. The second layerelectrode L2E may include the same material as a gate line GL or thegate electrode of a transistor in the sub-pixel SP.

FIG. 14 illustrates an example touch sensor unit TSU in the woven-typetouch sensor structure of the touch display device 100 according toaspects of the present disclosure. FIG. 15 illustrates an enlargement ofa partial area ENV4 in FIG. 14.

The woven-type touch sensor structure shown in FIG. 14 is obtained bychanging some configurations in the touch sensor structure of FIG. 12.Taking account of such a similarity, discussions will be conducted byfocusing on configurations that are different from the touch sensorstructure of FIG. 12 mainly described.

Referring to FIGS. 14 and 15, a second vertical electrode V2 may includea plurality of grooves on each of one side and the other side thereof.Each of a plurality of first separation electrodes (H1A, H1B, H1C, andH1D) may include a protrusion part PP interposed into a space providedby a corresponding groove of a plurality of grooves formed on the oneside of the second vertical electrode V2. Each of a plurality of secondseparation electrodes (H2A, H2B, H2C, and H2D) may include a protrusionpart PP interposed into a space provided by a corresponding groove of aplurality of grooves formed on the other side of the second verticalelectrode V2.

A third vertical electrode V3 may include a plurality of grooves on eachof one side and the other side thereof. Each of the plurality of secondseparation electrodes (H2A, H2B, H2C, and H2D) may include a protrusionpart PP interposed into a space provided by a corresponding groove of aplurality of grooves formed on the one side of the third verticalelectrode V3.

Referring to FIGS. 14 and 15, a first horizontal connection line HCL1may run across the grooves formed on one side and the other side of thesecond vertical electrode V2, and the grooves formed on one side and theother side of the third vertical electrode V3.

Referring to FIG. 15, the second vertical electrode V2 may include afirst layer electrode L1E and a second layer electrode L2E. Each of thefirst separation electrode H1A disposed in the first row and the secondseparation electrode H2A disposed in the first row may include a firstlayer electrode L1E and a second layer electrode L2E, which areelectrically separated from each other by the insulating layer INS.

Referring to FIG. 15, the first horizontal connection line HCL1connecting the first separation electrode H1A disposed in the first rowand the second separation electrode H2A disposed in the first row mayinclude a second layer electrode L2E.

The first horizontal connection line HCL1 including the second layerelectrode L2E may run over or under the first layer electrode L1E of thesecond vertical electrode V2, and be electrically separated from thefirst layer electrode L1E of the second vertical electrode V2 by theinsulating layer INS or another insulating layer.

For example, the first layer electrode L1E may include the same materialas a pixel electrode disposed in a sub-pixel SP. The second layerelectrode L2E may include the same material as a gate line GL or thegate electrode of a transistor in the sub-pixel SP.

FIG. 16 illustrates an example touch sensor unit TSU in the woven-typetouch sensor structure of the touch display device 100 according toaspects of the present disclosure.

The woven-type touch sensor structure shown in FIG. 16 is obtained bychanging some configurations in the touch sensor structure of FIG. 12.Taking account of such a similarity, discussions will be conducted byfocusing on configurations that are different from the touch sensorstructure of FIG. 12 mainly described.

Referring to FIG. 16, a first vertical touch line VTL1 may be disposedto extend in the horizontal direction and then bend to extend in thevertical direction while overlapping a plurality of first separationelectrodes (H1A, H1B, H1C, and H1D), and be electrically separated fromthe plurality of first separation electrodes (H1A, H1B, H1C, and H1D)overlapping the first vertical touch line VTL1.

A first horizontal touch line HTL1 may overlap all, or one or more, ofthe plurality of first separation electrodes (all, or one or more, ofH1A, H1B, H1C, and H1D) overlapping the first vertical touch line VTL1.

The first horizontal touch line HTL1 may be electrically connected to afirst separation electrodes H1A disposed in a first row among all, orone or more, of the plurality of first separation electrodes (all, orone or more, of H1A, H1B, H1C, and H1D) overlapping the first verticaltouch line VTL1, and be electrically separated from the first separationelectrodes (H1B, H1C, and H1D) disposed in the remaining rows except forthe first row.

A second vertical touch line VTL2 may be disposed to extend in thehorizontal direction and then bend to extend in the vertical directionwhile overlapping all, or one or more, of a plurality of secondseparation electrodes (all, or one or more, of H2A, H2B, H2C, and H2D),and be electrically separated from all, or one or more, of the pluralityof second separation electrodes (all, or one or more, of H2A, H2B, H2C,and H2D) overlapping the second vertical touch line VTL2.

A second horizontal touch line HTL2 may overlap all, or one or more, ofthe plurality of second separation electrodes (all, or one or more, ofH2A, H2B, H2C, and H2D) overlapping the second vertical touch line VTL2.

The second horizontal touch line HTL2 may be electrically connected to asecond separation electrodes H2B disposed in a second row among all, orone or more, of the plurality of second separation electrodes (all, orone or more, of H2A, H2B, H2C, and H2D) overlapping the second verticaltouch line VTL2, and be electrically separated from the secondseparation electrodes (H2A, H2C, and H2D) disposed in the remaining rowsexcept for the second row.

A third vertical touch line VTL3 may be disposed to extend in thehorizontal direction and then bend to extend in the vertical directionwhile overlapping all, or one or more, of a plurality of thirdseparation electrodes (all, or one or more, of H3A, H3B, H3C, and H3D),and be electrically separated from all, or one or more, of the pluralityof third separation electrodes (all, or one or more, of H3A, H3B, H3C,and H3D) overlapping the third vertical touch line VTL3.

The third horizontal touch line HTL3 may overlap all, or one or more, ofthe plurality of third separation electrodes (all, or one or more, ofH3A, H3B, H3C, and H3D) overlapping the third vertical touch line VTL3.

The third horizontal touch line HTL3 may be electrically connected to athird separation electrodes H3C disposed in a third row among all, orone or more, of the plurality of third separation electrodes (all, orone or more, of H3A, H3B, H3C, and H3D) overlapping the third verticaltouch line VTL3, and be electrically separated from the third separationelectrodes (H3A, H3B, and H3D) disposed in the remaining rows except forthe third row.

A fourth vertical touch line VTL4 may be disposed to extend in thehorizontal direction and then bend to extend in the vertical directionwhile overlapping all, or one or more, of a plurality of fourthseparation electrodes (all, or one or more, of H4A, H4B, H4C, and H4D),and be electrically separated from all, or one or more, of the pluralityof fourth separation electrodes (all, or one or more, of H4A, H4B, H4C,and H4D) overlapping the fourth vertical touch line VTL4.

The fourth horizontal touch line HTL4 may overlap all, or one or more,of the plurality of fourth separation electrodes (all, or one or more,of H4A, H4B, H4C, and H4D) overlapping the fourth vertical touch lineVTL4.

The fourth horizontal touch line HTL4 may be electrically connected to afourth separation electrodes H4D disposed in a fourth row among all, orone or more, of the plurality of fourth separation electrodes (all, orone or more, of H4A, H4B, H4C, and H4D) overlapping the fourth verticaltouch line VTL4, and be electrically separated from the fourthseparation electrodes (H4A, H4B, and H4C) disposed in the remaining rowsexcept for the fourth row.

FIG. 17 illustrates an arrangement structure of touch lines (VTL1-VTL12and HTL1-HTL12) disposed in three touch sensor units TSU1, TSU2, andTSU3 to which the woven-type touch sensor structures of FIGS. 8, 12 and14 are applied.

Referring to FIG. 17, three touch sensor units (TSU1, TSU2, and TSU3)are disposed adjacent to one another in the vertical direction.

The first touch sensor unit TSU1 may include first to fourth verticaltouch lines (VTL1-VTL4) and first to fourth horizontal touch lines(HTL1-HTL4). The second touch sensor unit TSU2 may include fifth toeighth vertical touch lines (VTL5-VTL8) and fifth to eighth horizontaltouch lines (HTL5-HTL8). The third touch sensor unit TSU3 may includeninth to twelfth vertical touch lines (VTL9-VTL12) and ninth to twelfthhorizontal touch lines (HTL9-HTL12).

Referring to FIG. 17, according to the woven-type touch sensorstructures of FIGS. 8, 12 and 14, vertical touch lines and horizontaltouch lines may not be alternately disposed.

Accordingly, as shown in FIG. 17, the first, fifth and ninth verticaltouch lines (VTL1, VTL5, VTL9), the first, fifth and ninth horizontaltouch lines (HTL1, HTL5, HTL9), the second, sixth and tenth verticaltouch lines (VTL2, VTL6, VTL10), the second, sixth and tenth horizontaltouch lines (HTL2, HTL6, HTL10), the third, seventh and eleventhvertical touch lines (VTL3, VTL7, VTL11), the third, seventh andeleventh horizontal touch lines (HTL3, HTL7, HTL11), the fourth, eighthand twelfth vertical touch lines (VTL4, VTL8, VTL12), and the fourth,eighth and twelfth horizontal touch lines (HTL4, HTL8, HTL12) may besequentially disposed.

FIG. 18 illustrates an arrangement structure of touch lines disposed inthree touch sensor units to which the woven-type touch sensor structuresof FIGS. 10 and 16 are applied.

According to the woven-type touch sensor structure shown in FIG. 10, asthe vertical touch lines (VTL1-VTL4) are connected in the protrusionparts PP of the separation electrodes included in the verticalelectrodes (V1-V4), and are disposed to overlap the horizontalelectrodes (H1-H4), when the woven-type touch sensor structure shown inFIG. 10 is applied, the vertical touch lines and the horizontal touchlines can be alternately disposed in areas where the separationelectrodes included in the horizontal electrodes (H1-H4) are disposed.

According to the woven-type touch sensor structure shown in FIG. 16, asthe vertical touch lines (VTL1-VTL4) are disposed to extend in thehorizontal direction, bend in the vertical direction in areas in whichthe separation electrodes included in the horizontal electrodes (H1-H4)are disposed, and extend in the vertical direction while overlapping theseparation electrodes, when the woven-type touch sensor structure shownin FIG. 16 is applied, the vertical touch lines and the horizontal touchlines can be alternately disposed in the areas of the separationelectrodes included in the horizontal electrodes (H1-H4).

Therefore, when the woven-type touch sensor structures of FIGS. 10 and16 are applied, referring to FIG. 18, the first vertical touch lineVTL1, the first horizontal touch line HTL1, the fifth vertical touchline VTL5, the fifth horizontal touch line HTL5, the ninth verticaltouch line VTL9, the ninth horizontal touch line HTL9, the secondvertical touch line VTL2, the second horizontal touch line HTL2, thesixth vertical touch line VTL6, the sixth horizontal touch line HTL6,the tenth vertical touch line VTL10, the tenth horizontal touch lineHTL10, the third vertical touch line VTL3, the third horizontal touchline HTL3, the seventh vertical touch line VTL7, the seventh horizontaltouch line HTL7, the eleventh vertical touch line VTL11, the eleventhhorizontal touch line HTL11, the fourth vertical touch line VTL4, thefourth horizontal touch line HTL4, the eighth vertical touch line VTL8,the eighth horizontal touch line HTL8, the twelfth vertical touch lineVTL12, and the twelfth horizontal touch line HTL12 may be sequentiallydisposed.

This vertical and/or horizontal alternating arrangement can be suitablefor enabling the touch driving circuit 310 to efficiently perform touchdriving for sensing each touch node. Accordingly, connections betweenthe touch lines and the touch driving circuit 310 can be accomplishedmore easily.

FIG. 19 is a signal diagram illustrating driving timings formutual-capacitance sensing in the touch display device 100 according toaspects of the present invention.

Referring to FIG. 19, the touch sensing circuit 300 of the touch displaydevice 100 according to aspects of the present disclosure hascapabilities to provide mutual-capacitance-based touch sensing.

Referring to FIG. 19, among four horizontal electrodes (H1-H4) and fourvertical electrodes (V1-V4) in a touch sensing unit TSU, the fourhorizontal electrodes (H1-H4) may be driving touch electrodes(transmitting touch electrodes Tx), and the four vertical electrodes(V1-V4) may be sensing touch electrodes (receiving touch electrodes Rx).

In this case, the touch sensing circuit 300 can supply touch drivingsignals TDS to the four horizontal electrodes (H1-H4) through fourhorizontal touch lines (HTL1-HTL4) in the touch sensing unit TSU, andreceive touch sensing signals from the four vertical electrodes (V1-V4)through four vertical touch lines (VTL1-VTL4) in the touch sensing unitTSU.

The touch sensing circuit 300 can detect capacitances between the fourvertical electrodes (V1-V4) and the four horizontal electrodes (H1-H4)based on the received touch sensing signals, and determine the presenceor absence of a touch based on the detected results and/or calculatetouch coordinates.

In a different manner to the configuration of FIG. 19, among fourhorizontal electrodes (H1-H4) and four vertical electrodes (V1-V4) in atouch sensing unit TSU, the four vertical electrodes (V1-V4) may bedriving touch electrodes (transmitting touch electrodes Tx), and thefour horizontal electrodes (H1-H4) may be sensing touch electrodes(receiving touch electrodes Rx).

FIG. 20 is a signal diagram illustrating driving timings forself-capacitance sensing in the touch display device 100 according toaspects of the present invention.

Referring to FIG. 20, the touch sensing circuit 300 of the touch displaydevice 100 according to aspects of the present disclosure hascapabilities to provide self-capacitance-based touch sensing.

Referring to FIG. 20, the touch sensing circuit 300 can supply one ormore touch driving signals TDS to one or more of four horizontalelectrodes (H1-H4) and four vertical electrodes (V1-V4) through at leastone of four horizontal touch lines (HTL1-HTL4) and four vertical touchlines (VTL1-VTL4) in a touch sensing unit TSU, and receive one or moretouch sensing signals from one or more electrodes to which the one ormore touch driving signals TDS are supplied.

The touch sensing circuit 300 can determine the presence or absence of atouch based on the received touch sensing signals, and/or calculatetouch coordinates.

According to the embodiments of the present disclosure, it is possibleto provide touch display devices 100 having the woven-type touch sensorstructure capable of reducing the number of touch lines and touchchannels while maintaining the accuracy of touch sensing.

According to the embodiments of the present disclosure, it is possibleto provide touch display devices 100 having the woven-type touch sensorstructure capable of reducing overlapping areas between touch electrodesTE and display lines (GL, DL).

According to the embodiments of the present disclosure, it is possibleto provide touch display devices 100 having the woven-type touch sensorstructure capable of improving touch sensitivity by reducing adifference in areas (sizes) between two types of touch electrodes (e.g.,a horizontal electrode and a vertical electrode).

The embodiments of the present disclosure described above have beendescribed for illustrative purposes; those skilled in the art willappreciate that various modifications, additions and substitutions arepossible, without departing from the scope and spirit of the inventionas disclosed in the accompanying claims. Although the exemplaryembodiments have been described for illustrative purposes, a personskilled in the art will appreciate that various modifications andapplications are possible without departing from the essentialcharacteristics of the present disclosure. For example, the specificcomponents of the exemplary embodiments may be variously modified. Thevarious embodiments described above can be combined to provide furtherembodiments. These and other changes can be made to the embodiments inlight of the above-detailed description. In general, in the followingclaims, the terms used should not be construed to limit the claims tothe specific embodiments disclosed in the specification and the claims,but should be construed to include all possible embodiments along withthe full scope of equivalents to which such claims are entitled.Accordingly, the claims are not limited by the specific embodiments.

What is claimed is:
 1. A touch display device comprising: a firsthorizontal electrode including a plurality of first electrode partsspaced apart from one another in a horizontal direction and a pluralityof first bridge parts connecting the plurality of first electrode parts;a second horizontal electrode including a plurality of second electrodeparts spaced apart from the first horizontal electrode in a verticaldirection and spaced apart from one another in the horizontal direction,and a plurality of second bridge parts connecting the plurality ofsecond electrode parts; a third horizontal electrode including aplurality of third electrode parts spaced apart from the secondhorizontal electrode in the vertical direction and spaced apart from oneanother in the horizontal direction, and a plurality of third bridgeparts connecting the plurality of third electrode parts; a firsthorizontal touch line electrically connected to the first horizontalelectrode and extending in the vertical direction; a second horizontaltouch line electrically connected to the second horizontal electrode andextending in the vertical direction; a third horizontal touch lineelectrically connected to the third horizontal electrode and extendingin the vertical direction, a plurality of first separation electrodeslocated between the plurality of first bridge parts and the plurality ofsecond bridge parts and spaced apart from one another in the horizontaldirection; a plurality of second separation electrodes located betweenthe plurality of second bridge parts and the plurality of third bridgeparts and spaced apart from one another in the horizontal direction; afirst vertical touch line electrically connecting a first separationelectrode in a first column of the plurality of first separationelectrodes and a second separation electrode in the first column of theplurality of second separation electrodes; and a second vertical touchline electrically connecting a first separation electrode in a secondcolumn of the plurality of first separation electrodes and a secondseparation electrode in the second column of the plurality of secondseparation electrodes.
 2. The touch display device according to claim 1,wherein the first separation electrode in the first column of theplurality of first separation electrodes and the second separationelectrode in the first column of the plurality of second separationelectrodes are connected by the first vertical touch line, and includedin a first vertical electrode, and the first separation electrode in thesecond column of the plurality of first separation electrodes and thesecond separation electrode in the second column of the plurality ofsecond separation electrodes are connected by the second vertical touchline, and included in a second vertical electrode.
 3. The touch displaydevice according to claim 2, further comprising a driving circuit thatis electrically connected to the first horizontal electrode through thefirst horizontal touch line, the second horizontal electrode through thesecond horizontal touch line, the third horizontal electrode through thethird horizontal touch line, the first vertical electrode through thefirst vertical touch line, and the second vertical electrode through thesecond vertical touch line.
 4. The touch display device according toclaim 1, wherein a length in the vertical direction of each of theplurality of first bridge parts is shorter than a length in the verticaldirection of each of the plurality of first electrode parts, and alength in the vertical direction of each of the plurality of secondbridge parts is shorter than a length in the vertical direction of eachof the plurality of second electrode parts, and a length in the verticaldirection of each of the plurality of third bridge parts is shorter thana length in the vertical direction of each of the plurality of thirdelectrode parts.
 5. The touch display device according to claim 1,further comprising a plurality of gate lines for carrying gate signalsfor display driving, wherein the plurality of gate lines includes a gateline overlapping the plurality of first electrode parts and notoverlapping the plurality of first bridge parts.
 6. The touch displaydevice according to claim 1, further comprising a plurality of datalines for carrying image signals for display driving, wherein the firsthorizontal touch line, the second horizontal touch line, and the thirdhorizontal touch line, the first vertical touch line, and the secondvertical touch line are disposed parallel to the plurality of datalines.
 7. The touch display device according to claim 1, wherein thefirst separation electrode in the second column of the plurality offirst separation electrodes and the second separation electrode in thesecond column of the plurality of second separation electrodes aredisposed between the first horizontal touch line and the secondhorizontal touch line.
 8. The touch display device according to claim 1,wherein the first separation electrode in the first column of theplurality of first separation electrodes includes a first protrusionpart interposed between a first electrode part in the first column ofthe plurality of first electrode parts and a second electrode part inthe first column of the plurality of second electrode parts, and whereinthe second separation electrode in the first column of the plurality ofsecond separation electrodes includes a second protrusion partinterposed between the second electrode part in the first column of theplurality of second electrode parts and a third electrode part in thefirst column of the plurality of third electrode parts.
 9. The touchdisplay device according to claim 8, wherein a first contact holethrough which the first protrusion part and the first vertical touchline are connected, and a second contact hole through which the secondprotrusion part and the first vertical touch line are connected areformed in the touch display device.
 10. The touch display deviceaccording to claim 8, wherein the first vertical touch line overlaps thesecond and third electrode parts disposed in the first column, and iselectrically separated from the overlapping second and third electrodeparts, and wherein the first horizontal touch line overlaps the secondand third electrode parts overlapping the first vertical touch line, iselectrically connected to the first electrode part of the first to thirdelectrode parts, and is electrically separated from the second and thirdelectrode parts.
 11. The touch display device according to claim 8,wherein an area of the first protrusion part is substantially equal toan area of a first bridge part in the first column of the plurality offirst bridge parts.
 12. The touch display device according to claim 1,wherein the first horizontal touch line is connected to one of theplurality of first electrode parts and the plurality of first bridgeparts of the first horizontal electrode, and the second horizontal touchline is connected to one of the plurality of second electrode parts andthe plurality of second bridge parts of the second horizontal electrode,and the third horizontal touch line is connected to one of the pluralityof third electrode parts and the plurality of third bridge parts of thethird horizontal electrode.
 13. The touch display device according toclaim 1, wherein each of the first horizontal electrode, the secondhorizontal electrode, the third horizontal electrode, the plurality offirst separation electrodes, and the plurality of second separationelectrodes is formed such that one or more first layer electrodes andone or more second layer electrodes located in different layers areelectrically connected to each other.
 14. The touch display deviceaccording to claim 1, wherein each of the first electrode part of thefirst horizontal electrode, the second electrode part of the secondhorizontal electrode, the first separation electrode disposed in thefirst column of the plurality of first separation electrodes, and thefirst separation electrode in the second column of the plurality offirst separation electrodes includes a first layer electrode and asecond layer electrode that are electrically separated by an insulatinglayer.
 15. The touch display device according to claim 1, furthercomprising a plurality of gate lines for carrying gate signals fordisplay driving, and a plurality of data lines for carrying imagesignals for display driving, wherein each of the plurality of gate linesextends in the horizontal direction, and each of the plurality of datalines extends in the vertical direction.
 16. The touch display deviceaccording to claim 1, wherein the first vertical touch line, the firsthorizontal touch line, the second vertical touch line and the secondhorizontal touch line are sequentially disposed.
 17. A touch displaydevice comprising: a first vertical electrode extends in a verticaldirection; a second vertical electrode spaced apart from the firstvertical electrode in a horizontal direction and extending in thevertical direction; a third vertical electrode spaced apart from thesecond vertical electrode in the horizontal direction and extending inthe vertical direction; a first vertical touch line electricallyconnected to the first vertical electrode and extending in the verticaldirection; a second vertical touch line electrically connected to thesecond vertical electrode and extending in the vertical direction; athird vertical touch line electrically connected to the third verticalelectrode and extending in the vertical direction; a plurality of firstseparation electrodes located between the first vertical electrode andthe second vertical electrode and spaced apart from one another in thevertical direction; a plurality of second separation electrodes locatedbetween the second vertical electrode and the third vertical electrodeand spaced apart from one another in the vertical direction; a firsthorizontal connection line electrically connecting a first separationelectrode in a first row of the plurality of first separation electrodesand a second separation electrode in the first row of the plurality ofsecond separation electrodes; a first horizontal touch line electricallyconnected to the first horizontal connection line and extending in thevertical direction; a second horizontal connection line electricallyconnecting a first separation electrode in a second row of the pluralityof first separation electrodes and a second separation electrode in thesecond row of the plurality of second separation electrodes; and asecond horizontal touch line electrically connected to the secondhorizontal connection line and extending in the vertical direction; 18.The touch display device according to claim 17, wherein the secondvertical electrode includes a plurality of grooves on each of one sideand the other side thereof, wherein each of the plurality of firstseparation electrodes includes a protrusion part located in a spaceprovided by a corresponding groove of the plurality of grooves formed onthe one side of the second vertical electrode, and each of the pluralityof second separation electrodes includes a protrusion part located in aspace provided by a corresponding groove of the plurality of groovesformed on the other side of the second vertical electrode, wherein thethird vertical electrode includes a plurality of grooves on each of oneside and the other side thereof, and wherein each of the plurality ofsecond separation electrodes includes a protrusion part located in aspace provided by a corresponding groove of the plurality of groovesformed on the one side of the third vertical electrode.
 19. The touchdisplay device according to claim 18, wherein the first horizontalconnection line runs across the grooves formed on each of the one sideand the other side of the second vertical electrode and the groovesformed on each of the one side and the other side of the third verticalelectrode.
 20. The touch display device according to claim 17, whereinthe first vertical touch line extends in the horizontal direction, andthen, bend and extend in the vertical direction while overlapping all,or one or more, of the plurality of first separation electrodes, and iselectrically separated from all, or one or more, of the plurality offirst separation electrodes overlapping the first vertical touch line,and wherein the first horizontal touch line overlaps all, or one ormore, of the plurality of first separation electrodes overlapping thefirst vertical touch line, is electrically connected to the firstseparation electrode in the first row of all, or one or more, of theplurality of first separation electrodes overlapping the first verticaltouch line, and is electrically separated from one or more firstseparation electrodes in the remaining rows except for the first row.21. The touch display device according to claim 17, further comprising agate line disposed in the horizontal direction and disposed parallel tothe first and second horizontal connection lines, wherein the gate lineruns across the first vertical electrode, the first separationelectrode, the second vertical electrode, the second separationelectrode, and the third vertical electrode.
 22. The touch displaydevice according to claim 17, further comprising a data line disposed inthe vertical direction, wherein the first vertical touch line, thesecond vertical touch line, and the third vertical touch line aredisposed parallel to the data line, and the first horizontal touch lineand the second horizontal touch line are disposed parallel to the dataline, and wherein the first and second horizontal connection lines crossthe data line.
 23. The touch display device according to claim 17,wherein each of the first vertical electrode, the second verticalelectrode, the third vertical electrode, the plurality of firstseparation electrodes, and the plurality of second separation electrodesis formed such that one or more first layer electrodes and one or moresecond layer electrodes located in different layers are disposed to beelectrically connected to each other.
 24. The touch display deviceaccording to claim 17, wherein each of the first separation electrodedisposed in the first row of the plurality of first separationelectrodes and the second separation electrode in the first row of theplurality of second separation electrodes includes a first layerelectrode and a second layer electrode that are electrically separatedby an insulating layer.
 25. The touch display device according to claim17, wherein the first vertical touch line, the first horizontal touchline, the second vertical touch line and the second horizontal touchline are sequentially disposed.